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Quiz Physics

Total questions: 45

Worksheet time: 34mins

Name
Class
Date
1.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
2.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
3.
Work is done when a weightlifter holds a barbell still above his head.
a)
True
b)
False
4.

You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?

a)

Yes, work was done

b)

No, work wasn't done

5.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
6.

If you increase your work and decrease your time, you will have

a)

more power

b)

less power

c)

same amount of power

d)

power rating can not be determined

7.

If you have the same work as someone, but in less time

a)

You are more powerful

b)

You are less powerful

c)

You have the same power

8.
Force is a _____ or _______
a)
simple    complex
b)
push     pull
c)
up      down
d)
in      out
9.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
10.
The more POWER you use to move an object, the more work you do. 
a)
True
b)
False
11.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
12.
How much time is needed to produce 720 Joules of work if 90 watts of power is used? 
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
13.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
14.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
15.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
16.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
17.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
18.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
19.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
20.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
21.
What kind of energy is in a person climbing a ladder?
a)
Potential
b)
Kinetic
c)
Both
22.
What kind of energy is in a waving hand?
a)
Potential
b)
Kinetic
23.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
24.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
25.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
26.
Which point has the most potential energy?
a)
G
b)
f
c)
b
d)
a
27.
Food has _________ energy. 
a)
Potential 
b)
Kinetic 
c)
None of the above 
d)
All of the above 
28.
Where would a person have to be located to have the minimum gravitational potential energy?
a)
up on the roof
b)
down in the basement
c)
in the middle
d)
outside
29.
A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?
a)
3.2 J
b)
4.2 J
c)
2.0 J
d)
12.8 J
30.
A 2600 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?
a)
427,500 J
b)
237,500 J
c)
437,500 J
d)
537,500 J
31.
2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
a)
1
b)
2
c)
3
d)
4
32.
A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?
a)
43982.4 J
b)
63982.3 J
c)
43962.4 J
d)
83942.4 J
33.

In what position we have more Kinetic energy?

a)

1

b)

2

c)

3

34.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
35.
How do we calculate work?
a)
W = F * d
b)
w = f * D
c)
W = F * D
d)
w = f * d
36.
The SI unit of work is?
a)
Joules
b)
Watts
c)
Newtons
d)
meters
37.
The SI unit for power is...?
a)
Watts
b)
Joules
c)
Newtons
d)
Meters
38.
What is the formula for Gravitational Potential Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
39.
What is the formula for Kinetic Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
40.

Elastic potential energy is at it's greatest when

a)

a rubber band is stretched all the way

b)

a rubber band is at it's smallest

c)

a rubber band is stretched half way

d)

the elastic in the waist of pants is stretched a small amount

41.
You do 90 joules of work in 30 seconds. How much power have you generated?
a)

30 watts

b)

3 watts

c)

120 watts

d)

270 watts

42.
If you push a cart with a force of 60 N for 2 m, how much work have you done?
a)
120 J
b)
30 J
c)
120 N 
d)
30 N
43.
Work of 2000 J is required to push an object 1.5 km. What is the force?
a)
2.5 N
b)
1.3 N
c)
1.6 N
d)
12 N
44.

This weight lifter required 1029.7 newtons of force to bring the weights to a height of approximately 2.31 m in 9 seconds. How much power did he have?

a)

264 Watts

b)

1029 Watts

c)

2,377 Watts

d)

4,009 Watts

45.

What is the gravitational potential energy (GPE) of a 1 kilogram pumpkin that is 1 meter above the ground?

g = 9.8 m/s2

a)

9.8 Joules

b)

1.0 Joule

c)

0.10 Joule

d)

11.8 m/s2

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