Question

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
250 m/s2

b
0.001 m/s2
c
1.0 m/s2

d
1000 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 volume of the gas increases.
b.If the temperature of a gas increases, then the pressure increases.
c.If the volume of a gas increases, then the pressure of the gas decreases.
Question 30
Given the following nuclear reaction:



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.86
c.228
d.220
e.88
f.Ra
g.Rn
h.Beta Decay
i.84
j.224
k.Alpha Decay
l.90
m.Th
Question 31
If a radioactive isotope has a half-life of 20 hours, how many half-lives have occured after 80 hours have passed?

a
5
b
4
c
2
d
3
Question 32
Which of the following chemical equations is balanced correctly?

a




b




c




d




Question 33
Match the scenario to the Newton's Law it describes.

Column A
1.
As a man steps forward off of a boat, the boat moves backwards.:
As a man steps forward off of a boat, the boat moves backwards.
2.
A stationary book on the table must be picked up in order for it to move:
A stationary book on the table must be picked up in order for it to move
3.
A soccer ball rests on a field until it is kicked.:
A soccer ball rests on a field until it is kicked.
4.
Increasing the mass on an object experiencing the same force would decrease the acceleration:
Increasing the mass on an object experiencing the same force would decrease the acceleration
5.
A man pushes on a wall, and the wall pushes back on the man.:
A man pushes on a wall, and the wall pushes back on the man.
6.
A rocket made with lighter composite materials will accelerate faster than a heavier one:
A rocket made with lighter composite materials will accelerate faster than a heavier one
Column B
a.Newton's Third Law
b.Newton's Second Law
c.Newton's First Law

Answer 1

Here are the answers:

Question 27
- mass = 500 g = 0.5 kg, a = F/m = 0.5 N / 0.5 kg = 1.0 m/s^2 → c

Question 28
- Mass number = protons + neutrons → a

Question 29 (match)
- Gay-Lussac's Law → b (If temperature increases, pressure increases.)
- Charles' Law → a (If temperature increases, volume increases.)
- Boyle's Law → c (If volume increases, pressure decreases.)

Question 30 (from Ra → Rn + α type decay)
- 1. Atomic mass of new atom → d (220)
- 2. Atomic number of new atom → b (86)
- 3. Symbol of the new atom → g (Rn)
- 4. Type of decay → k (Alpha Decay)

Question 31
- 80 hours / 20 hours per half-life = 4 half-lives → b

Question 32
- I don’t see the chemical equations (they appear missing). Please provide the four equations so I can tell which is balanced.

Question 33 (match)
- 1 → a (Newton’s Third Law)
- 2 → c (Newton’s First Law)
- 3 → c (Newton’s First Law)
- 4 → b (Newton’s Second Law)
- 5 → a (Newton’s Third Law)
- 6 → b (Newton’s Second Law)