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S2PSU5 machine & MA

Total questions: 87

Worksheet time: 1hrs 21mins

Name
Class
Date
1.
Two factors that determine work are
a)
size of the force, and distance
b)
size of the force, and type of force
c)
mass, and distance
2.
work is a measurement of how much force is applied over a certain
a)
distance
b)
velocity
c)
shape
d)
size
3.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
4.
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
5.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
6.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
7.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

8.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
9.
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
10.
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
11.

What would you solve for if given time and work?

a)

power

b)

force

c)

distance

d)

work

12.

what would you solve for if given distance and force?

a)

work

b)

power

c)

time

d)

motion

13.

What would you solve for if you were given work and distance

a)

power

b)

time

c)

force

d)

motion

14.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Lever

d)

Wedge

15.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Screw

16.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Screw

d)

Pulley

17.

Identify the simple machine in the picture.

a)

Screw

b)

Wheel and axle

c)

Wedge

d)

Pulley

18.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Lever

d)

Screw

19.

A slide would be an example of which type of simple machine?

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Wedge

20.

A door stop would be an example of which type of simple machine?

a)

Wedge

b)

Inclined plane

c)

Wheel and axle

d)

Lever

21.

Which simple machine would be the MOST efficient for lifting an object 30 meters off the ground?

a)

pulley

b)

screw

c)

wedge

d)

lever

22.

The unit of measure for force is _____________

a)

meters

b)

joules

c)

miles per hour

d)

newtons

23.

The unit of measure for work is_____________.

a)

meters

b)

joules

c)

newtons

d)

millibars

24.

Which model will require the least amount of force?

a)

pulley 1

b)

pulley 2

c)

pulley 3

d)

pulley 4

25.

Which ramp will require the least amount of force?

a)

A

b)

B

c)

C

d)

D

26.
How much work is produced when 350 N is used to move a car 5 m (W=Fd)?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
27.
Is this an example of work?
A teacher applies a force to a wall and becomes exhausted.
a)
True
b)
False
28.
if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?
a)
120 N
b)
5 N
c)
2000 N
d)
80 N
29.
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
30.

A simple machine that splits an object apart is a _______.

a)

inclined plane

b)

fulcrum

c)

wedge

d)

lever

31.
What type of simple machine is shown here?
a)
Pulley
b)
Wheel and Axle
c)
Lever
d)
Wedge
32.

You push down on a lever with a force of 100 N to lift a 500 N box.

What is the input force?

a)

100 N

b)

500 N

33.

If the marble had a mass of 0.3kg and the hill was 2.3 m tall, how much potential energy did it have at the top of the ramp?

a)

2.3 J

b)

0.23 J

c)

6.9 J

d)

5.2 J

34.

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?

a)

5.4 J

b)

1.8 J

c)

3 J

d)

6 J

35.

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

a)

200 J

b)

20.0 J

c)

100 J

d)

10 J

36.

If you do 40 joules of work lifting a 10N box, how high is the shelf you moved it to.

a)

400m

b)

40m

c)

50m

d)

4m

37.
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 
38.
When an object is in motion, it has ___________ energy.
a)
potential
b)
mechanical
c)
kinetic
d)
movement
39.

What is the correct unit for energy?

a)

meters (m)

b)

kilogram meters per second (kg m/s)

c)

Newtons (N)

d)

Joules (J)

40.

Bob (40 kg) is moving at 5 m/s. Calculate the kinetic energy that bob has.

a)

100 J

b)

1000 J

c)

500 J

d)

200 J

41.

When you compress a spring, you are storing __________ energy.

a)

sound

b)

elastic

c)

light

d)

chemical

42.

A 10.0kg ball rolls at a rate of 2.98 m/s. What is the kinetic energy of the ball?

a)

14.9J

b)

888J

c)

44.4J

d)

444J

43.

In building a sculpture, the sculptor burns 2420j of kinetic energy at 5m/s.


What is his mass (in kilograms)?

a)

968kg

b)

12,100kg

c)

193.6kg

d)

96.8kg

44.

If the marble had a mass of 0.3kg and the hill was 2.3 m tall, how much potential energy did it have at the top of the ramp?

a)

2.3

b)

.23

c)

6.9

d)

5.2

45.

If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy?

a)

2.7

b)

5.4

c)

3.6

d)

9

46.

What kind of energy does a marble rolling at the bottom of the hill have?

a)

gravitational potential

b)

chemical potential

c)

kinetic

d)

thermal

47.

What is the equation for kinetic energy?

a)

mv

b)

1/2 mv^2

c)

mgh

d)

Ft

48.

What is the equation for calculating gravitational potential energy

a)

mv

b)

1/2 mv^2

c)

mgh

d)

Ft

49.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
50.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
51.

Lilly's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs? (KE = 1/2mv2)

a)

8.5 J

b)

45 J

c)

7.5 J

d)

22.5 J

52.

(Use Fnet=ma), A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2?

a)

30 N

b)

13 N

c)

3.3 N

d)

0.3 N

53.

(Use Fnet=ma). Your parents' car has a mass of 2,000 kg. If your car produces a force of 5,000 N, at what rate will it accelerate?

a)

2.5 m/s2

b)

0.4 m/s2

c)

10,000,000 m/s2

d)

3,000 m/s2

54.

What is the equation to solve for FORCE?

a)

F=ma

b)

F=m/a

c)

F=a/m

55.

Determine the net force required to accelerate a 540-kg ultralight car at 2.7 m/s2.

a)

1458 N

b)

200 N

c)

55 N

d)

1987 N

56.

Which free body diagrams show balanced forces? (You can select more than 1)

a)

A

b)

B

c)

C

d)

D

e)

E

57.

The more mass an object has, the _______ force it takes to accelerate it.

a)

more

b)

less

58.

A 20 kg bike accelerates at 10 m/s2.  What was the sum of all the force vectors acting on the bike?

a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
59.

What is the net force?

a)

40 N left

b)

400 N right

c)

0 N Balanced

d)

40 N right

60.

What Unit do we Measure Force in?

a)

Newtons

b)

Joules

c)

Kilogram

d)

Work

61.

Jenny applies a 60 N force to a 20 Kg cart, what is the acceleration of the cart if friction can be neglected?

a)

1200 m/s/s

b)

0.33 m/s/s

c)

20 m/s/s

d)

3 m/s/s

62.

Which letter indicates where water is in both the solid and liquid phase at the same time?

a)

A

b)

B

c)

C

d)

D

e)

E

63.

A measure of the average kinetic energy of the particles in an object is called

a)

Heat

b)

Temperature

c)

Kinetic energy

d)

Enthalpy

64.

In which region(s) of the heating curve would water be a liquid and a gas at the same time?

a)

A

b)

B

c)

C

d)

D

e)

E

65.

Describe the substance at letter A.

a)

Solid

b)

Liquid

c)

Melting

d)

Evaporating

66.

Does not flow easily

a)

solid

b)

liquid

c)

gas

67.

What phase change occurs at D as heat is added?

a)

melting

b)

boiling

c)

sublimation

d)

freezing

68.

What phase change occurs at B as heat is added?

a)

melting

b)

condensation

c)

sublimation

d)

boiling

69.
This graph demonstrates an object that is -
a)
Increasing speed
b)
At a constant speed
c)
Decreasing speed
d)
Stationary
70.
This graph demonstrates an object that is -
a)
Increasing speed
b)
At a constant speed
c)
Decreasing speed
d)
Stationary
71.
This graph demonstrates an object that is -
a)
Increasing speed
b)
At a constant speed
c)
Decreasing speed
d)
Stationary
72.
Which line represents an object moving at a faster speed?
a)
A
b)
B
73.
Acceleration occurs when an object changes its speed or ______.
a)
direction
b)
force
c)
inertia
d)
mass
74.
Velocity is
a)
speed and acceleration
b)
constant speed
c)
a frame of reference
d)
speed in a given direction
75.
The rate at which velocity changes is called
a)
speed
b)
direction
c)
acceleration
d)
motion
76.
A train that travels 100 kilometers in 4 hours is traveling at what average speed?
a)
50 km/h
b)
100 km/h
c)
2 km/h
d)
25 km/h
77.
Which of the following is a unit of mass?
a)
kilogram
b)
liter
c)
meter
d)
pound
78.

What are the units for Weight?

a)

Kg

b)

N

c)

N/kg

d)

Joules

79.

What is the weight of a 0.456 kg object?

a)

456g

b)

0.456kg

c)

4.56N

d)

456N

80.

Find the weight of a 5kg rock on Mercury with a gravitational pull of 3.59m/s/s.

a)

5kg

b)

17.95N

c)

1.39N

d)

0.718N

81.

Which formula would you use to calculate weight (Fg)?

a)

mass/gravity

b)

gravity/mass

c)

weight-mass

d)

mass x gravity

82.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
friction 
83.
The scientific unit for mass is
a)
Kg
b)
N
c)
pounds
d)
ounces
84.

What would be the weight of a 10 kg object on earth?

a)

1 N

b)

10 N

c)

0.1 N

d)

100 N

85.

The one that is affected by gravity.

a)

Volume

b)

Mass

c)

Weight

d)

Ego

86.

The unit that goes with weight.

a)

Kilogram

b)

Newton

c)

Milliliter

d)

Mile

87.

Your weight is lower on the moon than on Earth.

a)

True

b)

False

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