WorksheetsKS3 PH01 Forces - L4 drag and friction
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
Forces are measured in....
a)
Kilograms
b)
Newtons
c)
Centimetres
d)
kg/N
2.
Forces are measured using a ….
a)
calculator
b)
Balance
c)
Ruler
d)
Newton meter
3.
Friction is good because....
a)
It allows things to start
b)
It acts as brakes
c)
Both of the above
4.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
5.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
6.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
7.
What surface would have the most friction?
a)
Glass
b)
Marble
c)
Pool table
d)
Sandpaper
8.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
9.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
10.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tread on the bottom of your shoes
c)
Tires from a car on the road
d)
All are examples that are helpful
11.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
12.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
13.
What are the units on the force due to friction?
a)
none
b)
Newtons
c)
meters
d)
kilograms
14.
without friction, an object in motion would never stop
a)
true
b)
false
15.
material with _______________ surfaces have less friction
a)
smooth
b)
rough
c)
both
16.
you can walk because there is friction between your __________ and ______________
a)
ground and air
b)
feet and ground
c)
feet and air
d)
air and ground
17.
friction helps you write on a paper or black board.
a)
true
b)
false
18.
having streamlined vehicles can reduce friction
a)
true
b)
false
19.
these are examples of lubricants
a)
oil,
b)
grease
c)
powder
d)
all of the above
20.
these are used to reduce unwanted heat in cars
a)
powder
b)
oil
c)
coolants
100 %
