  Name:    9th Grade Physics - Motion Practice Test 3

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

A car accelerates from 0 to 25 miles per hour in 10 seconds.  What is the rate of acceleration?
 a. 1.0 miles/hour/second c. 2.5 miles/hour/second b. 250 miles/hour/second d. 2.0 miles/hour/second

2.

Acceleration can be describe as a
 a. change in direction c. change in speed b. change in velocity and time

3.

A rocket takes 20 seconds to slow down from 800 km/hr to 400 km/hr.  What is the rocket’s deceleration?
 a. - 40 km/hr/sec c. - 50 km/hr/sec b. - 20 km/hr/sec d. - 30 km/hr/sec

4.

Given: final velocity = 200 km/hr, initial velocity = 100 km/hr, and the time interval = 10 seconds.  Find acceleration.
 a. 20 km/hr/sec c. 40 km/hr/sec b. 30 km/hr/sec d. 10 km/hr/sec

5.

Which of the following is a measurement of acceleration?
 a. 10 km/hr c. 10 km/hr/sec b. 10 km d. 10 hr

6. Use the graph above to find the bike’s acceleration.
 a. 10 m/s/s c. 20 m/s/s b. 40 m/s/s d. 30 m/s/s

7.

A train slows down from 10 m/s to 4 m/s in 2 seconds, find the deceleration.
 a. 2 m/s2 c. 3 m/s2 b. 4 m/s2 d. 5 m/s2

8.

A baseball pitcher throws a fastball that moves from 0 mph to 80 mph in 2 seconds, find the acceleration.
 a. 60 mph/s c. 40 mph/s b. 70 mph/s d. 50 mph/s

9. Use the graph above to find the deceleration of an object.
 a. 6.67 m/s2 c. 10.33 m/s2 b. 12.67 m/s2 d. 8.33 m/s2

10.

A runner sprints 10 meters in 2 seconds, assuming the sprinter started from a stand still what is his acceleration at 10 meters?
 a. 5 m/s2 c. 20 m/s2 b. 10 m/s2 d. 2.5 m/s2  