Multiple Choice Section
Choose the choice which best completes the following statements or answers
the following
questions.
1. The basic SI (metric) unit of length is the (1.) yard. (2.) foot. (3.) meter. (4.) mile.
2. An object is in motion when it changes position relative
to (1.) the observer.
(2.) the sun. (3.) Earth's
surface. (4.) a reference point.
3. The unit for _____ is m/s2. (1.) weight (2.) acceleration (3.) inertia (4.) velocity
4. A constant velocity means acceleration is (1.)
positive (2.) negative (3.) increasing
(4.) zero
5. If a car's velocity changes from 0 m/s to 40 m/s 10 seconds
later, its average acceleration is
(1.) 1 m/s2 (2.) 4 m/s2
(3.) 10 m/s2 (4.) 20 m/s2
6. To skate 100 m in 25 s, a skater must skate at an average
speed of
(1.) 2 m/s (2.) 4
m/s (3.) 5 m/s (4.) 10 m/s
7. The unit for _____ is m/s. (1.) weight (2.) acceleration (3.) inertia (4.) velocity
8. A body accelerates if it (1.) speeds
up (2.) slows down (3.) changes direction
(4.) all of these
9. Our most common frame of reference is the (1.) Earth (2.) moon (3.) sun (4.) atmosphere
10. If a car's velocity changes from 0 m/s to 30 m/s 10 seconds
later, its average acceleration is
(1.) 1 m/s2
(2.) 10 m/s2 (3.) 3 m/s2 (4.) 20 m/s2
11. To skate 80 m in 20 s, a skater must skate at an average speed
of (1.) 2 m/s
(2.) 4 m/s (3.)
5 m/s (4.) 10 m/s
12. Motion can be best described as a change in (1.) velocity
(2.) acceleration
(3.) speed (4.)
position
13. Any change over time is called a (n) (1.) rate (2.) period (3.) average (4.) constant
14. Velocity describes both ______ and _______ of an object.
(1.) speed and force
(2.) speed and direction
(3.) acceleration and speed (4.) speed and distance
15. Which is the correct relationship between speed and distance?
(1.) Speed = Distance x
Time (2.) Speed = Time x Distance
(3.) Speed = Distance /
Time (4.) Speed = Time / Distance
16. To calculate average speed, you need to know
(1.) the total distance
traveled. (2.) the total time to make the trip.
(3.) the total time, speed
of travel, and direction of travel.
(4.) the total distance
traveled and the total time.
17. To determine the velocity of a moving object, you need to
know both its speed and its
(1.) distance traveled.
(2.) acceleration. (3.) direction of motion. (4.) time of travel.
18. A Ferris wheel moving at constant speed is accelerating because
the
(1.) direction is always
changing. (2.) wheel moves
relative to the ground.
(3.) wheel moves relative
to the sun. (4.) the average speed does not change.
19. Which statement is correct?
(1.) Velocity is acceleration
divided by time.
(2.) A centripetal force is any
force that causes an object to move in a circle.
(3.) Acceleration is distance
divided by time.
(4.) Velocity to be properly calculated
needs to be only given a numerical value.
20. To calculate acceleration, you need to know the (1.)
final velocity and total time.
(2.) initial velocity and total
time. (3.) final velocity and initial velocity.
(4.) final velocity, initial velocity,
and the total time.
21. The mass of an object multiplied by its velocity is called
its (1.) momentum
(2.) acceleration
(3.) force (4.) work
True/False Section
1. There is always one correct frame of reference in a given situation.
2. Motion must be measured relative to a frame of reference.
3. Acceleration and deceleration occur with change in velocity.
Problems: Show the formula, work, numerical value and appropriate units for full credit in this section.
1. A baseball pitcher throws a pitch a distance of 30 meters
in 2 seconds. What is the
velocity of her pitch?
2. A car starting at rest (0 m/s) reaches a final velocity
of 100 m/s in 5 seconds.
What was the average acceleration of
this car?
3. A car travels 150 miles in 3 hours. What was the average
velocity of this car?
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Send any comments about this quiz to jbuckley@ekcsk12.org