Vocab
Force
Motion
Simple Machines
Study Guide Questions
100
a push or pull on an object
Force
100
a kind of force that pulls down everything on Earth
gravity
100
the change in the position of an object
motion
100
a simple machine with a flat, slanted surface
inclined plane
100
Which of the following is evidence that an object has been in motion?
A
The object's position has changed.
B
The object's mass has changed.
C
The object's force has changed.
D
The object's weight has changed.
A
The object's position has changed.
200
the place where something is
position
200
How are pushes and pulls alike?
They are both forces
They make things move
200
Above, below, in, under are all ____ words
Position
200
a simple machine made of a bar that turns around a fixed point
lever
200
What type of simple machine is a wheelchair ramp?
A
a pulley
B
a wedge
C
a wheel and axle
D
an inclined plane
D
an inclined plane
300
a force that slows down moving things
friction
300
How are pushes and pulls different?
Pushes move things away
Pulls bring things closer
300
When an object is moving, it is in ______
motion
300
the point on a lever that does not move
fulcrum
300
The diagram below shows a pulley system.
What is the pulley in the diagram doing?
A
It is redirecting force.
B
It is multiplying force.
C
It is removing force.
D
It is eliminating friction.
A
It is redirecting force.
400
how far something moves in a certain amount of time
speed
400
What force is being used in a game of Tug of War?
Pulls
400
What do you use to measure speed?
a) balance
b) thermometer
c) stopwatch
c) stopwatch
400
Name three simple machines
Pulley, Screw, Inclined Plane, Lever Wheel and Axle Wedge
400
What makes simple machines very useful?
A
They can remove force.
B
They can multiply force.
C
They can increase friction.
D
They can eliminate friction.
B
They can multiply force.
500
a tool that helps move a force
simple machine
500
Is it harder to slide an object across a wooden floor or a carpeted floor? Why?
carpeted floor
friction
500
Which was faster? Walking or hopping?
Walking
500
Choose 1 of the simple machines and explain how it could help you move something
Answers vary
500
The diagram shows four objects that are falling from different heights.
Which object experiences the highest gravitational force?
A
object W because it has the largest size
B
object X because it has the largest mass
C
object Y because it has the smallest mass
D
object Z because it has the smallest size
B
object X because it has the largest mass