Question
9. On a position versus time graph, if an object is not moving, what will the shape of this graph be?
a
Diagonal down
b
Vertical
c
Diagonal up
d
Horizontal
10. From 0 seconds to 15 seconds, what is true about the car?
a
It is not moving
b
It has a positive acceleration
c
It has a constant velocity
d
It has a negative acceleration
11. If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
v=d/t
a
50 km
b
.10 km
c
100 km
d
25 km
12. If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
v=d/t
a
50 m/s
b
0.5 m/s
c
105 m/s
d
2 m/s
13. Acceration is a change in motion over time
True
False
14. Which of the following is an example of negative acceleration?
a
a car speeding up after leaving a stoplight
b
a car slowing down at a stoplight
c
a car going at a constant velocity down a highway
d
a runner speeds up at the end of a race
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?
acceleration = V final - V initial / time
a
4 m/s2
b
-4 m/s2
c
4 m/s
d
400 m/s2
a
Diagonal down
b
Vertical
c
Diagonal up
d
Horizontal
10. From 0 seconds to 15 seconds, what is true about the car?
a
It is not moving
b
It has a positive acceleration
c
It has a constant velocity
d
It has a negative acceleration
11. If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
v=d/t
a
50 km
b
.10 km
c
100 km
d
25 km
12. If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
v=d/t
a
50 m/s
b
0.5 m/s
c
105 m/s
d
2 m/s
13. Acceration is a change in motion over time
True
False
14. Which of the following is an example of negative acceleration?
a
a car speeding up after leaving a stoplight
b
a car slowing down at a stoplight
c
a car going at a constant velocity down a highway
d
a runner speeds up at the end of a race
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?
acceleration = V final - V initial / time
a
4 m/s2
b
-4 m/s2
c
4 m/s
d
400 m/s2
Answers
GPT-4o mini
Here are the answers to your questions:
**9.** On a position versus time graph, if an object is not moving, what will the shape of this graph be?
**d. Horizontal**
A horizontal line indicates that the position is constant over time, which means the object is not moving.
**10.** From 0 seconds to 15 seconds, what is true about the car?
**a. It is not moving**
This option indicates that there is no change in position over that time period, which means the car is stationary.
**11.** If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
Using the formula \(d = vt\),
\(d = 50 \text{ km/hr} \times 2 \text{ hr} = 100 \text{ km}\)
**c. 100 km**
**12.** If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
Using the formula \(v = d/t\),
\(v = 10 \text{ m} / 5 \text{ s} = 2 \text{ m/s}\)
**d. 2 m/s**
**13.** Acceleration is a change in motion over time.
**True**
Acceleration is defined as the rate of change of velocity with respect to time.
**14.** Which of the following is an example of negative acceleration?
**b. a car slowing down at a stoplight**
Negative acceleration (deceleration) occurs when the speed of an object decreases.
**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?
Using the formula for acceleration,
\(a = (V_{\text{final}} - V_{\text{initial}}) / t\)
\(a = (40 \text{ m/s} - 0 \text{ m/s}) / 10 \text{ s} = 4 \text{ m/s}^2\)
**a. 4 m/s²**
**9.** On a position versus time graph, if an object is not moving, what will the shape of this graph be?
**d. Horizontal**
A horizontal line indicates that the position is constant over time, which means the object is not moving.
**10.** From 0 seconds to 15 seconds, what is true about the car?
**a. It is not moving**
This option indicates that there is no change in position over that time period, which means the car is stationary.
**11.** If a car is traveling 50 km/hr, how many km will it cover in 2 hours?
Using the formula \(d = vt\),
\(d = 50 \text{ km/hr} \times 2 \text{ hr} = 100 \text{ km}\)
**c. 100 km**
**12.** If Mrs. Wade goes a distance of 10 m in 5 seconds, what is her velocity?
Using the formula \(v = d/t\),
\(v = 10 \text{ m} / 5 \text{ s} = 2 \text{ m/s}\)
**d. 2 m/s**
**13.** Acceleration is a change in motion over time.
**True**
Acceleration is defined as the rate of change of velocity with respect to time.
**14.** Which of the following is an example of negative acceleration?
**b. a car slowing down at a stoplight**
Negative acceleration (deceleration) occurs when the speed of an object decreases.
**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?
Using the formula for acceleration,
\(a = (V_{\text{final}} - V_{\text{initial}}) / t\)
\(a = (40 \text{ m/s} - 0 \text{ m/s}) / 10 \text{ s} = 4 \text{ m/s}^2\)
**a. 4 m/s²**