Question
Question 9
On a position versus time graph, if an object is not moving, what will the shape of this graph be?
a
Diagonal up
b
Diagonal down
c
Vertical
d
Horizontal
Question 11
If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
v=d/t
a
100 km
b
.10 km
c
25 km
d
50 km
Question 12
If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
v=d/t
a
2 m/s
b
50 m/s
c
0.5 m/s
d
105 m/s
Question 13
Acceration is a change in motion over time
True
False
Question 14
Which of the following is an example of negative acceleration?
a
a runner speeds up at the end of a race
b
a car speeding up after leaving a stoplight
c
a car slowing down at a stoplight
d
a car going at a constant velocity down a highway
Question 15
If a car starts at rest and accelerates to 40 m/s in a time of 10 s. What is the acceleration of the car?
a
4 m/s2
b
-4 m/s2
c
400 m/s2
d
4 m/s
Question 16
Magnitude is a measure of how strong a force is.
True
False
Question 18
When two forces are in opposite directions, and they are the exact same magnitude, the forces will:
a
cancel out
b
subtract from each other
c
eventually reach equilibrium
d
go on infinitely
Question 19
When forces are in opposite directions, they subtract from one another.
True
False
Question 20
In the picture above, which of the following is true?
it shows on the left a person holding a sign that says "5 meters long" and there is a person on the right who's sign says "5 meters east"
a
both are examples of vectors
b
A. represents scalar and B. represents vector
c
both are examples of scalar
d
A. represents vector and B. represents scalar
On a position versus time graph, if an object is not moving, what will the shape of this graph be?
a
Diagonal up
b
Diagonal down
c
Vertical
d
Horizontal
Question 11
If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
v=d/t
a
100 km
b
.10 km
c
25 km
d
50 km
Question 12
If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
v=d/t
a
2 m/s
b
50 m/s
c
0.5 m/s
d
105 m/s
Question 13
Acceration is a change in motion over time
True
False
Question 14
Which of the following is an example of negative acceleration?
a
a runner speeds up at the end of a race
b
a car speeding up after leaving a stoplight
c
a car slowing down at a stoplight
d
a car going at a constant velocity down a highway
Question 15
If a car starts at rest and accelerates to 40 m/s in a time of 10 s. What is the acceleration of the car?
a
4 m/s2
b
-4 m/s2
c
400 m/s2
d
4 m/s
Question 16
Magnitude is a measure of how strong a force is.
True
False
Question 18
When two forces are in opposite directions, and they are the exact same magnitude, the forces will:
a
cancel out
b
subtract from each other
c
eventually reach equilibrium
d
go on infinitely
Question 19
When forces are in opposite directions, they subtract from one another.
True
False
Question 20
In the picture above, which of the following is true?
it shows on the left a person holding a sign that says "5 meters long" and there is a person on the right who's sign says "5 meters east"
a
both are examples of vectors
b
A. represents scalar and B. represents vector
c
both are examples of scalar
d
A. represents vector and B. represents scalar
Answers
Answer
When same vectors are in the same direction they add. When same vectors are in opposite directions, they:
a
divide
b
multiply
c
subtract
d
also add
Question 23
Which of the following is an example of Newton's First Law?
a
A baseball hits collides with a fence and they exchange forces
b
Increasing the mass on an object experiencing the same force would decrease the acceleration
c
A rocket made with lighter composite materials will accelerate faster than a heavier one
d
A stationary book on the table must be picked up in order for it to move
Question 25
Four students push on a block of wood with the forces shown in the diagram below. Assume friction is negligible.
it shows two different net forces on the left side that are 10N and 8N
it shows two different net forces on the right side that are 5N and 2N
What is the net force acting on the block? Are the forces balanced or unbalanced? How will the block move?
a
The net force on the block is 11 N. The forces are unbalanced. The block will move to the left.
b
The net force on the block is 11 N. The forces are unbalanced. The block will move to the right.
c
The net force on the block is 25 N. The forces are balanced. The block will move to the right.
d
The net force on the block is 25 N. The forces are balanced. The block will move to the left.
e
The net force on the block is 25 N. The forces are unbalanced. The block will move to the right.
f
The net force on the block is 11 N. The forces are balanced. The block will move to the left.
g
The net force on the block is 11 N. The forces are balanced. The block will move to the right.
h
The net force on the block is 25 N. The forces are unbalanced. The block will move to the left.
a
divide
b
multiply
c
subtract
d
also add
Question 23
Which of the following is an example of Newton's First Law?
a
A baseball hits collides with a fence and they exchange forces
b
Increasing the mass on an object experiencing the same force would decrease the acceleration
c
A rocket made with lighter composite materials will accelerate faster than a heavier one
d
A stationary book on the table must be picked up in order for it to move
Question 25
Four students push on a block of wood with the forces shown in the diagram below. Assume friction is negligible.
it shows two different net forces on the left side that are 10N and 8N
it shows two different net forces on the right side that are 5N and 2N
What is the net force acting on the block? Are the forces balanced or unbalanced? How will the block move?
a
The net force on the block is 11 N. The forces are unbalanced. The block will move to the left.
b
The net force on the block is 11 N. The forces are unbalanced. The block will move to the right.
c
The net force on the block is 25 N. The forces are balanced. The block will move to the right.
d
The net force on the block is 25 N. The forces are balanced. The block will move to the left.
e
The net force on the block is 25 N. The forces are unbalanced. The block will move to the right.
f
The net force on the block is 11 N. The forces are balanced. The block will move to the left.
g
The net force on the block is 11 N. The forces are balanced. The block will move to the right.
h
The net force on the block is 25 N. The forces are unbalanced. The block will move to the left.
Answer
Question 26
An object is moving at a constant speed. If a balanced force is applied in the opposite direction the object is moving, what will most likely happen?
a
The object will speed up.
b
The object will continue moving at a constant speed.
c
The object will change direction.
d
The object will slow down and eventually stop moving.
An object is moving at a constant speed. If a balanced force is applied in the opposite direction the object is moving, what will most likely happen?
a
The object will speed up.
b
The object will continue moving at a constant speed.
c
The object will change direction.
d
The object will slow down and eventually stop moving.
Answer
Question 27
If Mrs. Hankinson slides a 500 g book with 0.5 N of force, what is the acceleration of the book?
F = ma
a
500 m/s2
b
250 m/s2
c
1000 m/s2
d
0.001 m/s2
Question 28
The mass number of an element is equal to:
a
the number of protons and neutrons
b
the number of electrons
c
the number of protons and electrons
d
the number of protons
Question 29
Match the Gas Law to its relationship.
Column A
1.
Gay-Lussac's Law:
Gay-Lussac's Law
2.
Charles' Law:
Charles' Law
3.
Boyle's Law:
Boyle's Law
Column B
a.If the temperature of a gas increases, then the pressure increases.
b.If the volume of a gas increases, then the pressure of the gas decreases.
c.If the temperature of a gas increases, then the volume of the gas increases.
Question 30
Given the following nuclear reaction:
224/88 Ra 4/2 He + A/Z X
Column A
1.
What is the atomic mass of the new atom?:
What is the atomic mass of the new atom?
2.
What is the atomic number of the new atom?:
What is the atomic number of the new atom?
3.
What is the symbol of the new atom?:
What is the symbol of the new atom?
4.
What type of decay is demonstrated here?:
What type of decay is demonstrated here?
Column B
a.Gamma Decay
b.224
c.Ra
d.Rn
e.220
f.88
g.Alpha Decay
h.Beta Decay
i.90
j.86
k.84
l.Th
m.228
If Mrs. Hankinson slides a 500 g book with 0.5 N of force, what is the acceleration of the book?
F = ma
a
500 m/s2
b
250 m/s2
c
1000 m/s2
d
0.001 m/s2
Question 28
The mass number of an element is equal to:
a
the number of protons and neutrons
b
the number of electrons
c
the number of protons and electrons
d
the number of protons
Question 29
Match the Gas Law to its relationship.
Column A
1.
Gay-Lussac's Law:
Gay-Lussac's Law
2.
Charles' Law:
Charles' Law
3.
Boyle's Law:
Boyle's Law
Column B
a.If the temperature of a gas increases, then the pressure increases.
b.If the volume of a gas increases, then the pressure of the gas decreases.
c.If the temperature of a gas increases, then the volume of the gas increases.
Question 30
Given the following nuclear reaction:
224/88 Ra 4/2 He + A/Z X
Column A
1.
What is the atomic mass of the new atom?:
What is the atomic mass of the new atom?
2.
What is the atomic number of the new atom?:
What is the atomic number of the new atom?
3.
What is the symbol of the new atom?:
What is the symbol of the new atom?
4.
What type of decay is demonstrated here?:
What type of decay is demonstrated here?
Column B
a.Gamma Decay
b.224
c.Ra
d.Rn
e.220
f.88
g.Alpha Decay
h.Beta Decay
i.90
j.86
k.84
l.Th
m.228
Answered by
GPT-4o mini
Here are the answers to each of the provided questions:
**Question 9:** On a position versus time graph, if an object is not moving, what will the shape of this graph be?
**Answer:** d. Horizontal
(Explanation: If the object is not moving, its position does not change over time, which results in a horizontal line on the graph.)
---
**Question 11:** If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
**Answer:** a. 100 km
(Explanation: Distance = speed × time = 50 km/hr × 2 hr = 100 km.)
---
**Question 12:** If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
**Answer:** a. 2 m/s
(Explanation: Velocity = distance / time = 10 m / 5 s = 2 m/s.)
---
**Question 13:** Acceleration is a change in motion over time.
**Answer:** True
(Explanation: Acceleration is defined as the rate of change of velocity over time.)
---
**Question 14:** Which of the following is an example of negative acceleration?
**Answer:** c. a car slowing down at a stoplight
(Explanation: Negative acceleration (or deceleration) refers to a decrease in speed or velocity.)
---
**Question 15:** If a car starts at rest and accelerates to 40 m/s in a time of 10 s. What is the acceleration of the car?
**Answer:** a. 4 m/s²
(Explanation: Acceleration = change in velocity / time = (40 m/s - 0 m/s) / 10 s = 4 m/s².)
---
**Question 16:** Magnitude is a measure of how strong a force is.
**Answer:** True
(Explanation: Magnitude refers to the size or strength of a quantity, including force.)
---
**Question 18:** When two forces are in opposite directions, and they are the exact same magnitude, the forces will:
**Answer:** a. cancel out
(Explanation: Equal forces acting in opposite directions will result in no net force, effectively canceling each other out.)
---
**Question 19:** When forces are in opposite directions, they subtract from one another.
**Answer:** True
(Explanation: Forces in opposite directions combine by subtraction to determine the net force.)
---
**Question 20:** In the picture above, which of the following is true?
**Answer:** b. A represents scalar and B represents vector
(Explanation: "5 meters long" is a scalar (only has a magnitude), while "5 meters east" is a vector (has both magnitude and direction).)
---
If you're looking for more explanations or further assistance, feel free to ask!
**Question 9:** On a position versus time graph, if an object is not moving, what will the shape of this graph be?
**Answer:** d. Horizontal
(Explanation: If the object is not moving, its position does not change over time, which results in a horizontal line on the graph.)
---
**Question 11:** If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
**Answer:** a. 100 km
(Explanation: Distance = speed × time = 50 km/hr × 2 hr = 100 km.)
---
**Question 12:** If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
**Answer:** a. 2 m/s
(Explanation: Velocity = distance / time = 10 m / 5 s = 2 m/s.)
---
**Question 13:** Acceleration is a change in motion over time.
**Answer:** True
(Explanation: Acceleration is defined as the rate of change of velocity over time.)
---
**Question 14:** Which of the following is an example of negative acceleration?
**Answer:** c. a car slowing down at a stoplight
(Explanation: Negative acceleration (or deceleration) refers to a decrease in speed or velocity.)
---
**Question 15:** If a car starts at rest and accelerates to 40 m/s in a time of 10 s. What is the acceleration of the car?
**Answer:** a. 4 m/s²
(Explanation: Acceleration = change in velocity / time = (40 m/s - 0 m/s) / 10 s = 4 m/s².)
---
**Question 16:** Magnitude is a measure of how strong a force is.
**Answer:** True
(Explanation: Magnitude refers to the size or strength of a quantity, including force.)
---
**Question 18:** When two forces are in opposite directions, and they are the exact same magnitude, the forces will:
**Answer:** a. cancel out
(Explanation: Equal forces acting in opposite directions will result in no net force, effectively canceling each other out.)
---
**Question 19:** When forces are in opposite directions, they subtract from one another.
**Answer:** True
(Explanation: Forces in opposite directions combine by subtraction to determine the net force.)
---
**Question 20:** In the picture above, which of the following is true?
**Answer:** b. A represents scalar and B represents vector
(Explanation: "5 meters long" is a scalar (only has a magnitude), while "5 meters east" is a vector (has both magnitude and direction).)
---
If you're looking for more explanations or further assistance, feel free to ask!
Answered by
GPT-4o mini
Here are the answers to the additional questions you've provided:
**Question:** When same vectors are in the same direction they add. When same vectors are in opposite directions, they:
**Answer:** c. subtract
(Explanation: When vectors are in opposite directions, their magnitudes subtract from each other to determine the resultant vector.)
---
**Question 23:** Which of the following is an example of Newton's First Law?
**Answer:** d. A stationary book on the table must be picked up in order for it to move
(Explanation: Newton's First Law states that an object at rest will remain at rest unless acted upon by a net external force. The stationary book won't move until someone applies a force to lift it.)
---
**Question 25:** Four students push on a block of wood with the forces shown in the diagram below. Assume friction is negligible.
- Forces on the left: 10 N and 8 N (to the left)
- Forces on the right: 5 N and 2 N (to the right)
Calculating the net force:
Net force to the left = 10 N + 8 N = 18 N (to the left)
Net force to the right = 5 N + 2 N = 7 N (to the right)
Net force = 18 N (left) - 7 N (right) = 11 N (to the left)
**Answer:** a. The net force on the block is 11 N. The forces are unbalanced. The block will move to the left.
(Explanation: The forces are unbalanced because the resultant force is not zero; with a net force of 11 N acting to the left, the block will move in that direction.)
---
If you have any more questions or need further clarification, feel free to ask!
**Question:** When same vectors are in the same direction they add. When same vectors are in opposite directions, they:
**Answer:** c. subtract
(Explanation: When vectors are in opposite directions, their magnitudes subtract from each other to determine the resultant vector.)
---
**Question 23:** Which of the following is an example of Newton's First Law?
**Answer:** d. A stationary book on the table must be picked up in order for it to move
(Explanation: Newton's First Law states that an object at rest will remain at rest unless acted upon by a net external force. The stationary book won't move until someone applies a force to lift it.)
---
**Question 25:** Four students push on a block of wood with the forces shown in the diagram below. Assume friction is negligible.
- Forces on the left: 10 N and 8 N (to the left)
- Forces on the right: 5 N and 2 N (to the right)
Calculating the net force:
Net force to the left = 10 N + 8 N = 18 N (to the left)
Net force to the right = 5 N + 2 N = 7 N (to the right)
Net force = 18 N (left) - 7 N (right) = 11 N (to the left)
**Answer:** a. The net force on the block is 11 N. The forces are unbalanced. The block will move to the left.
(Explanation: The forces are unbalanced because the resultant force is not zero; with a net force of 11 N acting to the left, the block will move in that direction.)
---
If you have any more questions or need further clarification, feel free to ask!
Answered by
GPT-4o mini
**Question 26:** An object is moving at a constant speed. If a balanced force is applied in the opposite direction the object is moving, what will most likely happen?
**Answer:** d. The object will slow down and eventually stop moving.
(Explanation: A balanced force in this context means that the applied force in the opposite direction will create a net force, which results in deceleration. The object will gradually slow down due to this opposing force until it comes to a stop.)
---
If you have more questions or any follow-ups, feel free to ask!
**Answer:** d. The object will slow down and eventually stop moving.
(Explanation: A balanced force in this context means that the applied force in the opposite direction will create a net force, which results in deceleration. The object will gradually slow down due to this opposing force until it comes to a stop.)
---
If you have more questions or any follow-ups, feel free to ask!
Answered by
GPT-4o mini
Here are the answers to your new set of questions:
### Question 27
If Mrs. Hankinson slides a 500 g book with 0.5 N of force, what is the acceleration of the book?
**F = ma** (where F is force, m is mass, and a is acceleration)
First, convert the mass from grams to kilograms:
500 g = 0.5 kg
Now, use the formula:
\( a = \frac{F}{m} = \frac{0.5 \text{ N}}{0.5 \text{ kg}} = 1 \text{ m/s}^2 \)
**Answer:** None of the provided options are correct, but if you need to choose an option, please double-check the values given.
### Question 28
The mass number of an element is equal to:
**Answer:** a. the number of protons and neutrons
(Explanation: The mass number is defined as the total number of protons and neutrons in an atom's nucleus.)
### Question 29
Match the Gas Law to its relationship.
1. **Gay-Lussac's Law:**
**Answer:** a. If the temperature of a gas increases, then the pressure increases.
2. **Charles' Law:**
**Answer:** c. If the temperature of a gas increases, then the volume of the gas increases.
3. **Boyle's Law:**
**Answer:** b. If the volume of a gas increases, then the pressure of the gas decreases.
### Question 30
Given the nuclear reaction:
\[ ^{224}_{88}Ra \rightarrow ^{4}_{2}He + \frac{A}{Z}X \]
1. **What is the atomic mass of the new atom?**
**Answer:** e. 220
(Explanation: The mass number of \( Rn \) is subtracted by the mass number of \( He \): 224 - 4 = 220.)
2. **What is the atomic number of the new atom?**
**Answer:** i. 86
(Explanation: The atomic number of \( Ra \) is 88, and since \( He \) has an atomic number of 2, you subtract 2: 88 - 2 = 86.)
3. **What is the symbol of the new atom?**
**Answer:** d. Rn
(Explanation: The element with atomic number 86 is Radon, which is represented by the symbol \( Rn \).)
4. **What type of decay is demonstrated here?**
**Answer:** g. Alpha Decay
(Explanation: The emission of an alpha particle (\( ^{4}_{2}He \)) indicates that this is an alpha decay process.)
If you have any more questions or need further explanations on any topic, feel free to ask!
### Question 27
If Mrs. Hankinson slides a 500 g book with 0.5 N of force, what is the acceleration of the book?
**F = ma** (where F is force, m is mass, and a is acceleration)
First, convert the mass from grams to kilograms:
500 g = 0.5 kg
Now, use the formula:
\( a = \frac{F}{m} = \frac{0.5 \text{ N}}{0.5 \text{ kg}} = 1 \text{ m/s}^2 \)
**Answer:** None of the provided options are correct, but if you need to choose an option, please double-check the values given.
### Question 28
The mass number of an element is equal to:
**Answer:** a. the number of protons and neutrons
(Explanation: The mass number is defined as the total number of protons and neutrons in an atom's nucleus.)
### Question 29
Match the Gas Law to its relationship.
1. **Gay-Lussac's Law:**
**Answer:** a. If the temperature of a gas increases, then the pressure increases.
2. **Charles' Law:**
**Answer:** c. If the temperature of a gas increases, then the volume of the gas increases.
3. **Boyle's Law:**
**Answer:** b. If the volume of a gas increases, then the pressure of the gas decreases.
### Question 30
Given the nuclear reaction:
\[ ^{224}_{88}Ra \rightarrow ^{4}_{2}He + \frac{A}{Z}X \]
1. **What is the atomic mass of the new atom?**
**Answer:** e. 220
(Explanation: The mass number of \( Rn \) is subtracted by the mass number of \( He \): 224 - 4 = 220.)
2. **What is the atomic number of the new atom?**
**Answer:** i. 86
(Explanation: The atomic number of \( Ra \) is 88, and since \( He \) has an atomic number of 2, you subtract 2: 88 - 2 = 86.)
3. **What is the symbol of the new atom?**
**Answer:** d. Rn
(Explanation: The element with atomic number 86 is Radon, which is represented by the symbol \( Rn \).)
4. **What type of decay is demonstrated here?**
**Answer:** g. Alpha Decay
(Explanation: The emission of an alpha particle (\( ^{4}_{2}He \)) indicates that this is an alpha decay process.)
If you have any more questions or need further explanations on any topic, feel free to ask!
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