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STAAR Review: Category 2

Total questions: 61

Worksheet time: 37mins

Name
Class
Date
1.

What kind of energy is being shown in the picture?

a)

Light

b)

Gravitational

c)

Potential

d)

Kinetic

2.

As the ball is dropped, the potential energy decreases while the kinetic energy increases however the amount of energy stays the same.

a)

True

b)

False

3.

Which is the best example of kinetic energy?

a)

A car sitting on top of a hill

b)

A skateboard on the sidewalk

c)

A wagon rolling down a hill

d)

A powerwheel parked in the yard

4.

What is changed to increase the potential energy of an object being dropped?

a)

Temperature

b)

Gravity

c)

Height

d)

Volume

5.

Which two points have the same potential energy?

a)

U & V

b)

S & T

c)

T & X

d)

S & X

6.

What happens as the ball on the pendulum goes from center to the right in the diagram?

a)

Kinetic energy increases while potential energy decreases

b)

Potential energy increases as kinetic energy decreases

c)

Potential energy increases as kinetic energy increases

d)

Potential and Kinetic energy is lost

7.

How does energy change?

a)

The cart has more kinetic energy at the top than when it is going down the hill.

b)

The cart has potential energy at the top while kinetic energy increases going down.

c)

The cart has potential energy that is lost going down the hill.

d)

The cart has kinetic energy at the top of the hill and no potential energy.

8.

The ball's potential energy is equal to it's mechanical energy.

a)

True

b)

False

9.

A toy car is traveling up a ramp. What happens to the energy as it goes up the ramp?

a)

Kinetic energy increases while potential decreases.

b)

Potential energy increases while kinetic decreases.

c)

Both potential and kinetic energy increases.

d)

Both potential and kinetic energy decreases.

10.

Which position has the most kinetic energy?

a)

1

b)

2

c)

3

d)

4

11.

Which position has the highest potential energy?

a)

1

b)

2

c)

4

d)

6

12.

What energy transformation takes place when you turn on an electric light?

a)

Chemical > light + heat

b)

Chemical > electrical + heat

c)

Mechanical > light + heat

d)

Electrical > light + heat

13.
Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?
a)
A triple beam balance measuring an object’s mass.
b)
A pencil sharpener plugged into a wall outlet.
c)
A projector displaying a diagram on the screen.
d)
A working flashlight used to light up a dark corner.
14.

Balanced or Unbalanced: A runner jumping over a hurdle.

a)

balanced

b)

unbalanced

15.

Balanced or Unbalanced: A lamp sitting on a table.

a)

balanced

b)

unbalanced

16.

Balanced or Unbalanced: A car accelerating around a mountain curve.

a)

balanced

b)

unbalanced

17.

Balanced or Unbalanced: Two ice skaters moving in a straight line at a constant speed.

a)

balanced

b)

unbalanced

18.

The overall forces acting on an object is called

a)

net force

b)

balanced force

c)

total force

d)

unbalanced force

19.

Forces are measured in (a)   .

20.

When an object has balanced forces acting on it, the object __________.

a)

moves to the right

b)

stays still

c)

moves to the left

d)

can move in any direction

21.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
22.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
23.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
24.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
25.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
26.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
27.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
28.

Calculate the net force shown in the  diagram?

(a)  

29.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
30.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
31.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
32.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
33.

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

a)

action force

b)

reaction force

c)

net force

d)

inertia

34.

When an unbalanced force acts on an object, the force ______________________.

a)

changes the motion of the object

b)

is cancelled by another force

c)

does not change the motion of an object

d)

is equal to the weight of the object

35.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
36.
You push against a wall and the wall is pushing back on you.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
37.

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

a)

100 m/s2

b)

25,000 m/s2

c)

10 m/s2

d)

25 m/s2

38.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is its force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

39.

What is Newton's 2nd Law?

a)

Every action has an equal and opposite reaction

b)

An object at rest stays at rest, an object in motion stays in motion.

c)

F = ma

d)

Friction

40.

If the man pushes with an equal amount of force, which object will accelerate more?

a)

Car because it has more mass

b)

Lawnmower because it has less mass

c)

Car because it has less mass

d)

Lawnmower because it has more mass

41.

A 25 kg bike accelerates at 10 m/s2. What was the force?

a)

250 N

b)

2.5 N

c)

25 N

d)

15 N

42.

If an object was accelerating at 5 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass?

a)

50 kg

b)

2 kg

c)

0.5 kg

d)

5 kg

43.

True or False. 800 N = 800 kg ⋅ m/s2

a)

True

b)

False

44.

_____ is the distance an object travels per unit time. It is the rate of change in position.

a)

motion

b)

distance

c)

displacement

d)

speed

45.

The distance between Dallas and Houston is about 385 kilometers. It takes about 3.35 hours to drive between each city. What is the average speed in kilometers per hour?


Solve to the thousandth's place. You may round up to the hundredth's place. Record the number only.

(a)  

46.

Students complete a lab to graph motion. A student has to walk 20 meters and record the time every 5 meters. The distance and time are shown in the table. What was the average speed of the total walk in meters per second?


Solve to the thousandth's place. You may round up to the hundredth's place. Record the number only.

(a)  

47.
a)
b)
c)
48.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
49.
What is happening at A?
a)
Stationary
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
50.
Which runner won the race?
a)
A
b)
B
c)
C
51.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
52.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
53.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
54.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
55.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
56.

What is this graph showing?

a)

Fast constant speed

b)

Slow constant speed

c)

At rest

d)

Accelerating

57.

What is acceleration?

a)

an increase in speed

b)

a decrease in speed

c)

a change in direction

d)

all of these are examples

58.

Describe the object's motion from A to B (TWO Answers):

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

59.

Describe the object's motion from B to C:

a)

Speeding Up

b)

Slowing Down

c)

Constant Speed

d)

Not Moving

60.

A girl on a bike rides down a hill 500 meters long in 50 seconds. What is her speed?

a)

100 m/s

b)

10 m/s

c)

1,000 m/s

d)

10 mph

61.

A trip to Florida takes 10 hours. The distance is 816 km. Calculate the average speed.

a)

81.6 km/hr

b)

81.6 mph

c)

82 m/s

d)

816 km/h

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