Simple Machines
Magnets
Gravity
Force
Newton's Laws
100
This simple machine is found on a bicycle.
What is a wheel and axle?
100
What are the names of the two poles on a magnet?
What is north and south?
100
Gravity is a force that pulls objects _______ the ground.
What is towards?
100
This is a push or pull that makes an object move.
What is force?
100
When an object changes position, it is called _____.
What is motion?
200
This simple machine can be seen on a flag pole.
What is a pulley?
200
ZIf you tried to put the north poles of two magnets together, they will _____ each other.
What is repel?
200
Gravity makes objects pull toward, or ______, each other.
What is attract?
200
Do you need more force to pull an empty cart or a full one?
Full
200
What is acceleration?
A change in an object's velocity or speed
300
A seesaw is an example of this type of simple machine.
What is a lever?
300
Magnetism causes a compass needle to point on what direction?
What is north?
300
What happens when you drop two objects at the same time?
They fall to the earth at the same time
300
Applying greater force when kicking a ball will make it go _____.
faster or farther
300
All objects have this property that says they will either stay still or keep moving until an object acts on them.
What is inertia?
400
A shark's tooth is this type of simple machine.
What is a wedge?
400
Name two materials that are attracted to magnets.
Iron, steel, nickel, cobalt
400
This word means the strength of the force of gravity on an object.
What is weight?
400
When you push an object, do you change that object's size, distance, or position?
What is position?
400
The harder you hit a tennis ball, the faster it will ______.
What is accelerate?
500
The top of a bottle or jar is this type of simple machine.
What is a screw?
500
What is one reason a paper clip might not stick to a magnet?
It is not made of a magnetic material
500
If you throw a ball in the air, gravity will make it change direction and ______.
fall back down towards Earth
500
How does friction change the way things move?
It can stop or slow down an object
500
When a skateboarder pushes his foot on the ground, what does the ground do?
The ground pushes back on his foot to propel him forward.
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