WorksheetsForce, Machines, Cells
Total questions: 33
Worksheet time: 21mins
Name
Class
Date
1.
How does friction help us move from place to place?
a)
Friction does not help us.
b)
Friction keeps us from slipping and sliding.
c)
Friction only helps cats.
d)
Friction makes us slip and fall.
2.
In which of the following activity is friction useful?
a)
sliding down a snowy hill on a sled
b)
ice skating
c)
running around a track
d)
roller blading
3.
In the image, what force is acting on arrow A?
a)
friction
b)
gravity
c)
push
d)
Jedi force
4.
Is gravity a push or a pull?
a)
push
b)
pull
c)
neither
d)
both
5.
Why do air planes and race cars have sleek shapes?
a)
to reduce friction from air resistance
b)
to increase air resistance
c)
to look more appealing than cats
d)
so people will buy them
6.
What keeps the Moon in orbit around Earth?
a)
Earth's rotation.
b)
Earth's atmosphere.
c)
Earth's gravity.
d)
Earth's shape.
7.
Which would require the most force to move?
a)
a toy car
b)
a sleeping cat
c)
a science book
d)
a chair with a friend sitting in it
8.
A _____ is a pull or a push.
a)
force
b)
friction
c)
gravity
d)
speed
9.
One way that a force can cause the change in an object's motion is to...
a)
do nothing.
b)
eat ice cream.
c)
start the object moving.
d)
shine on the object.
10.
When you type on the keys of your Chromebook you are using a
a)
pull
b)
push
c)
gravity
d)
friction
11.
A _____ moves an object closer to you.
a)
push
b)
pull
c)
friction
d)
cat
12.
What force moves an object away from you?
a)
pull
b)
push
c)
gravity
d)
Jedi force
13.
Another way that force can cause the change in an object's motion is to...
a)
change its color.
b)
change its pitch.
c)
change its direction.
d)
change its spots.
14.
_____ is the force that slows and stops motion between touching objects.
a)
Friction
b)
Gravity
c)
Pull
d)
Push
15.
Which has the least friction?
a)
snowboard on a snowy hill
b)
running on the playground
c)
sandpaper on wood
d)
a racer on a track
16.
Why is there less friction between two ice cubes touching than between sandpaper on wood?
a)
They have rough surfaces.
b)
They have loud surfaces.
c)
They have smooth surfaces.
d)
They have bright surfaces.
17.
What is one way to reduce friction?
a)
Put sandpaper between the surfaces that touch.
b)
Push the surfaces closer together.
c)
Shine a light on the surfaces.
d)
Put a slippery substance between the surfaces.
18.
2. The place where a lever pivots is called the _______.
a)
Pivot point
b)
Tissue
c)
Fulcrum
19.
6. What kind of lever is this?
a)
First Class Lever
b)
Second Class Lever
c)
Third Class Lever
20.
We use levers to make work easier.?
a)
True
b)
False
21.
3. Which type of lever is this?
a)
First Class Lever
b)
Second Class Lever
c)
Third Class Lever
22.
How many types of levers are there?
a)
1
b)
2
c)
3
d)
4
23.
The resistance force and the effort force are on the opposite sides of the fulcrum in this.
a)
First class
b)
Second Class
c)
Third Class
d)
Fourth Class
24.
A see saw is an example of a:
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
25.
A wheelbarrow is an example of a:
a)
1st class lever
b)
2nd class lever
c)
3rd class lever
26.
1. A _________is a simple machine with a fulcrum and a rigid bar.
a)
Pivot
b)
Lever
c)
Wedge
27.
If you want to decrease the effort force when using a lever, where will you move the fulcrum?
a)
Closer to the object you want to move
b)
Farther away from the object you want to move
c)
You don't move the fulcrum, you move the effort force
d)
None of these answers
28.
When using a lever, your work is made easier. However, what does the simple machine make you do in order to make this work easier?
a)
Move the resistance arm a greater distance
b)
Move the effort arm a greater distance
c)
Move the fulcrum to the middle
29.
All __________________ are made up of cells.
a)
plants
b)
animals
c)
creatures
d)
living things
30.
The three parts of an animal cell are
a)
cell wall, cell membrane, nucleus
b)
cell membrane, cytoplasm, nucleus
c)
cell wall, cell membrane, cytoplasm
d)
cell membrane, nucleus, chloroplasts
31.
_______ are found in the nucleus of cells.
a)
Cellulose
b)
Genes
c)
Virus
d)
Plasma
32.
Which of these does not contain a cell?
a)
Skin
b)
Eye
c)
Hair
d)
Salt
33.
This picture shows
a)
electrons
b)
platelets
c)
red blood cells
d)
dunkin doughnuts
100 %
