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🔥Energy Transfer via Friction🔥

Total questions: 46

Worksheet time: 31mins

Name
Class
Date
1.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
2.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
3.
Why is it important for basketball players to wear shoes with tread when playing?
a)
to increase the speed of the player
b)
to decrease the force between the player and the floor
c)
to increase friction between the floor and the player’s feet
d)
to decrease the amount of force needed for the player to move
4.
Which would make a car move fastest?
a)
moving up a steep slope
b)
moving up a gradual slope
c)
moving down a steep slope
d)
moving down a gradual slope
5.
Which material should be used on a bicycle ramp to increase friction?
a)
shiny metal
b)
rough paper
c)
smooth wood
d)
wet plastic
6.
A ball is kicked and rolls for a long distance across a field. Which eventually causes the ball to slow and stop?
a)
friction
b)
gravity
c)
motion
d)
position
7.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
8.
Which of the following would increase the motion of a ball after it is kicked?
a)
a flat, grassy surface
b)
a smooth surface sloped uphill
c)
a smooth surface sloped downhill
9.
Friction resists the motion of two surfaces that are touching.
a)
True
b)
False
10.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
11.
Can energy be destroyed
a)
no
b)
yes
12.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
13.
On which surface will a toy car travel the furthest?
a)
Carpet
b)
Polished Wood
c)
Ice
14.
A puck slides along an icy surface. What makes it slow down?
a)
It runs out of push
b)
It rubs against the ice
c)
It runs out of electricity
15.
Which of the following statements is false?
a)
Friction can only slow things down
b)
Friction is never useful
c)
Friction can stop things from moving
16.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
17.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
18.
Objects balanced on Timmy's head experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
19.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
20.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
21.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
22.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
23.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
24.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
25.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
26.
What type of friction is not moving?
a)
static
b)
dynamic
c)
kinetic
d)
rolling
27.
The parachuter is slowing down because of ___________ friction.
a)
Static
b)
Fluid
c)
Rolling
d)
Sliding
28.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
29.

What is the common name of gases and liquids

a)

Mixture

b)

Fluid

c)

Compounds

d)

Molecules

30.

What is easier to move, a box from rest or to move it when it is already in motion?

a)

The box at rest

b)

The box already in motion

c)

Both

d)

None of these

31.

Which type of friction occurs when a book is pushed across a table?

a)

Static Friction

b)

Fluid Friction

c)

Sliding Friction

d)

Rolling Friction

32.

What effect does adding oil to a machine have on friction?

a)

It increases friction

b)

It decreases friction

c)

It has no effect

d)

It stops movement completely

33.

Which factor would most likely decrease the friction between two surfaces?

a)

Using sandpaper

b)

Adding a lubricant

c)

Increasing the roughness

d)

Increasing the weight

34.

Which type of friction is shown in the picture?

a)

rolling

b)

fluid

c)

static

d)

sliding

35.

Which type of friction is shown in the picture?

a)

fluid

b)

static

c)

rolling

d)

sliding

36.

Which type of friction is shown in the picture?

a)

rolling

b)

static

c)

fluid

d)

sliding

37.

Less than static friction but more than rolling

a)

static friction

b)

sliding friction

c)

rolling friction

d)

fluid friction

38.

The amount of friction depends on the weight of the objects

a)

True

b)

False

39.
What does friction produce?
a)

color

b)
sound
c)
heat
40.

The diagram represents a person using a spring scale to pull a wooden block up a ramp.The plastic straws were placed under the wooden block to

a)

decrease the mass of the block

b)

decrease the amount of friction

c)

increase the gravitational pull of the block

41.
How do fingerprints on your hands help with everyday tasks?
a)
They provide friction for gripping objects
b)
They make your hands look unique
c)
They help regulate body temperature
d)
They improve blood circulation
42.
What is added to engines to reduce friction?
a)
Oil
b)
Water
c)
Sand
d)
Air
43.
Which of the following would likely have the highest coefficient of friction?
a)
Ice on ice
b)
Steel on steel
c)
Rubber on concrete
d)
Glass on glass
44.
What effect does increasing the mass of an object have on the friction force?
a)
It always increases the friction force
b)
It always decreases the friction force
c)
It has no effect on the friction force
d)
It may increase or decrease the friction force depending on the surface
45.
How does the force of static friction compare to the applied force when an object is not moving?
a)
It is always greater
b)
It is always less
c)
It is exactly equal
d)
It is zero
46.
Why is it harder to move a bookcase on carpet than on a wood floor?
a)
Carpet has a lower coefficient of friction
b)
Carpet has a higher coefficient of friction
c)
Wood floor is heavier
d)
Wood floor is smoother

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