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Power DOL 15 Review

Total soal: 35

Worksheet time: 1hrs 10mins

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Kelas
Tanggal
1.

A measure of how fast something moves in a given amount of time.

a)

Speed

b)

Distance

c)

Time

d)

Velocity

2.

Which of these choices is the formula for average speed?

a)

SPEED = DISTANCE / TIME

b)

VELOCITY = 2TIME / SPEED

c)

SPEED = TIME / DISTANCE

3.

Select all of the units that could be used for distance.

a)

Meters

b)

Seconds

c)

Kilometers

d)

Miles.

4.

Select all of the units for time.

a)

Seconds

b)

Hours

c)

Meters

d)

Kilometers

5.

Select the times that the object is NOT moving according to the graph. (Could be more than one)

a)

0-10 minutes.

b)

10-20 minutes.

c)

20-30 minutes.

d)

30-40 minutes.

6.

A baseball is thrown a distance of 20 meters. What is its speed if it takes 0.5 seconds to cover the distance?

a)

40 m/s

b)

10 m/s

c)

3 m/s

d)

30 m/s

7.

If Steve throws the football 50 meters in 3 seconds, what is the average speed of the football?

a)

16.7 m/s

b)

15.5 m/s

c)

25.3 m/s

d)

22 m/s

8.

Calculate the average speed of a car that travels 60 km in 2 hours.

a)

12 km/h

b)

30 km/h

c)

25 km/h

d)

35 km/h

9.

Calculate the average speed between 0 and 10 hours.

a)

2 km/h

b)

3 km/h

c)

1 km/h

d)

5 km/h

10.
All of the following are examples of speed except:
a)
Rambo dropkicking cheese at 98 miles/hr
b)
A piece of chocolate melting in your mouth
c)
Jube skydiving at 72 Km/Min
d)
Allison driving at 34 Meters/Second
11.
Calculate the speed:
A Car traveled 240 Km in 5 Hours
a)
48 Km/Hr
b)
1200 Km/Hr
c)
4.8 Km/Hr
d)
0.02 Km/Hr
12.
Calculate the speed:
A Motorcycle traveled 368 Km in 8 Hours
a)
2944 Km/hr
b)
4.5 Km/hr
c)
46 Km/hr
d)
0.02 Km/hr
13.

American Florence Griffith Joyner (nickamed "Flo-Jo") holds the world record for the fastest women's 100 meter race. Her time was 10.49 seconds! What was her average speed during the race? (round to the nearest tenth)

a)

1 m/s

b)

.1 m/s

c)

9.4 m/s

d)

9.5 m/s

14.

The International Space Station travels 68,400 miles in 4 hours. What is its average speed as it orbits the Earth?

a)

10,000 mph

b)

17,100 mph

c)

22,800 mph

d)

25,000 mph

15.

A tortoise can walk about 1.5 miles in 5 hours. What is its average speed?

a)

3.3 mph

b)

3.3 m/s

c)

.3 mph

d)

.3 m/s

16.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
17.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
18.

If there are two forces going in the opposite direction how would you find the net force?

a)

Subtract

b)

Add

c)

Neither

d)

Multiply

19.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
20.
Look at the diagram. What would be the direction of the motion ?
a)
movement to the left
b)
movement to the right
c)
no movement
21.

If the wind is heading south with a force of 5 N, and a car is going north with force of 78936 N, what is the Net Force and Direction.

a)

78931 N North

b)

78931 N South

c)

78531 N North

d)

78531 N South

22.

What is the overall Net Force OF The GREATER SIDE?

a)

671, Left

b)

571, Left

c)

601, Right

d)

480, Right

23.

You and your friend, are playing tug of war. Your friend pulls with a force of 55 N, to the rights. You pull with a force of 65 N, to the left. What is the net force on the rope?

a)

20 N, to the left

b)

20 N, to the right

c)

10 N, to the right

d)

10 N, to the left

24.
Which one is balanced?
a)
top
b)
bottom
c)
both
25.

How would you describe the vertical direction forces in this free body diagram?

a)

Balanced

b)

Unbalanced

26.
What is the net force?
a)
5 N
b)
45 N to the left
c)
5 N to the right
d)
45 N to the right
27.

Energy that is stored (Of position) is called:

a)

Kinetic Energy

b)

Potential Energy

28.
Energy in motion is called:
a)
Potential Energy
b)
Kinetic Energy
29.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
30.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
31.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
32.

Which 2 letters have the most kinetic energy

a)

W

b)

X

c)

Y

d)

Z

33.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases 
c)
The kinetic energy decreases while the potential energy increases 
d)
Bothe the potential energy and kinetic energy increase 
34.

What type of energy is a basketball that is being held in the hands of a player.

a)

Potential

b)

Kinetic

35.

What type of energy is a Girl serving a volleyball

a)

Potential

b)

Kinetic