Download 1. Which distance-time graph depicts an object at rest? A B C D

PS.10a
A
distance (meters)
1. Which distance-time graph depicts an object at rest?
14
12
10
8
6
4
2
0
2
3
4
5
6
5
6
5
6
5
6
B
distance (meters)
time (seconds)
12
10
8
6
4
2
0
2
3
4
C
distance (meters)
time (seconds)
12
10
8
6
4
2
0
2
3
4
D
distance (meters)
time (seconds)
12
10
8
6
4
2
0
2
3
4
time (seconds)
PS.10a
2. Which distance-time graph depicts an object with a positive acceleration?
A
distance (meters)
140
120
100
80
60
40
20
0
1
2
3
4
5
6
7
8
6
7
8
6
7
8
6
7
8
time (seconds)
B
distance (meters)
30
25
20
15
10
5
0
1
2
3
4
5
C
distance (meters)
time (seconds)
80
70
60
50
40
30
20
10
0
1
2
3
4
5
time (seconds)
D
distance (meters)
35
30
25
20
15
10
5
0
1
2
3
4
5
time (seconds)
PS.10b
3. Which of the following is correct about mass and weight?
A
B
C
D
Weight takes into account Earth’s gravitational pull.
Mass takes into account Earth’s gravitational pull.
Mass is always greater than weight on Earth.
Weight is always less than mass on Earth.
PS.10a
4. What is the definition of acceleration?
A
B
C
D
the force of gravity
the rate of change in velocity
the momentum of a body
a unit of work or power
PS.10b
5. Newton’s Three Laws of Motion are:
1st Law — Law of Inertia: Objects at rest will remain at rest; objects in motion
will remain in motion.
2nd Law — Law of Acceleration: Force = mass x acceleration.
3rd Law — Law of Interaction: Every action has an equal but opposite reaction.
Which of these three laws governs a bat striking a baseball?
A
B
C
D
1st law only
1st and 3rd laws
2nd law only
all three laws
PS.10c
6. How do we know when work is being done on an object?
A
B
C
D
a force is exerted on the object
the object moves some distance as a result of a force
the object does not move, when the force is exerted on it
the object moves a distance equal to the amount of force exerted on it
PS.10c
7. Work is done when —
A
B
C
D
enough effort is exerted on an object.
the object on which the force is being applied moves in the direction of the force.
someone exerts a great amount of force on an object.
forces are balanced.
PS.10c
8. “The ability to do work” is the definition of which of the following?
A
B
C
D
energy
motion
force
velocity
PS.10a
9. If an object has a constant speed, but the direction of the object changes,
this object —
A
B
C
D
is accelerating.
is decelerating.
is not in motion.
has constant velocity.
PS.10a
10. What are the two different ways that an object can accelerate?
A
B
C
D
change
change
change
change
in
in
in
in
distance & change in displacement
shape & change in speed
time & change in distance
speed & change in direction