RADT Physics Concepts Chapter 2
Exam Questions and Answers
An auto, starting from rest, undergoes constant acceleration and covers a distance
of 1200 meters. The final speed of the auto is 60 meters/sec. How long does it take
the car to cover 1200 meters? - Answer- 40 s.
A car traveling at constant speed - Answer- can change direction.
An auto moves 10 meters in the first second of travel, 10 more meters in the next
second, and 10 meters during the third second. The acceleration of the auto in
m/s^2 is - Answer- zero.
A quantity that is a measure of how the velocity of a body changes with time is -
Answer- acceleration.
The following quantities relate to the rate of change of position. Which pair will
always have the same magnitude? - Answer- Instantaneous speed and
instantaneous velocity.
The acceleration of a body cannot be zero at a point where - Answer- the
instantaneous velocity is positive but decreasing.
A student releases a ball from rest on an inclined plane and measures that it travels
a distance of 0.5 m in a time of 2.0 s. The average speed of the ball is - Answer-
0.25 m/s
A student releases a ball from rest on an inclined plane and measures that it travels
a distance of 0.5 m in a time of 2.0 s. The acceleration of the ball is - Answer-
0.25 m/s^2
A car travels at a distance of 80 km. For the first 30 minutes it is driven at a constant
speed of 80 km/hr. The motor begins to vibrate and the driver reduces the speed to
40 km/hr for the rest of the trip. The average speed for the entire trip is - Answer-
53.3 km/hr
Initially you are driving at 55 mph. If you come to rest in 7.5 s while traveling 450 ft,
your average speed is - Answer- 60 ft/s
If your average speed for a 3-hour trip is 45 mph, the distance traveled is - Answer-
135 mi
Exam Questions and Answers
An auto, starting from rest, undergoes constant acceleration and covers a distance
of 1200 meters. The final speed of the auto is 60 meters/sec. How long does it take
the car to cover 1200 meters? - Answer- 40 s.
A car traveling at constant speed - Answer- can change direction.
An auto moves 10 meters in the first second of travel, 10 more meters in the next
second, and 10 meters during the third second. The acceleration of the auto in
m/s^2 is - Answer- zero.
A quantity that is a measure of how the velocity of a body changes with time is -
Answer- acceleration.
The following quantities relate to the rate of change of position. Which pair will
always have the same magnitude? - Answer- Instantaneous speed and
instantaneous velocity.
The acceleration of a body cannot be zero at a point where - Answer- the
instantaneous velocity is positive but decreasing.
A student releases a ball from rest on an inclined plane and measures that it travels
a distance of 0.5 m in a time of 2.0 s. The average speed of the ball is - Answer-
0.25 m/s
A student releases a ball from rest on an inclined plane and measures that it travels
a distance of 0.5 m in a time of 2.0 s. The acceleration of the ball is - Answer-
0.25 m/s^2
A car travels at a distance of 80 km. For the first 30 minutes it is driven at a constant
speed of 80 km/hr. The motor begins to vibrate and the driver reduces the speed to
40 km/hr for the rest of the trip. The average speed for the entire trip is - Answer-
53.3 km/hr
Initially you are driving at 55 mph. If you come to rest in 7.5 s while traveling 450 ft,
your average speed is - Answer- 60 ft/s
If your average speed for a 3-hour trip is 45 mph, the distance traveled is - Answer-
135 mi
