How far an object moves in a certain amount of time
What is speed?
100
This is what a stopped object looks like on a graph.
What is a flat line?
100
an object in motion stays in motion, an object at rest will stay at rest unless acted n by a force.
What is inertia?
100
a force that acts between surfaces that touch to slow or stop motion
What is friction?
100
If you increase an object's mass, you increase or decrease its force of gravity?
What is increase?
200
The amount of matter that makes up an object
What is mass?
200
the force that pulls all objects toward the Earth
What is gravity?
200
Friction tends to have this effect on an object's motion?
What is slows it down?
300
a push or a pull
What is a force?
300
this force works against gravity to slow a moving object
What is air resistance?
300
A student uses a bat to hit a softball with a certain force. Then she hits a lighter ball with the same force. How does the lighter ball compare to the heavier ball?
What is it will go farther?
400
A change in speed
What is acceleration?
400
When an object is not moving or at a constant speed
What are balanced forces?
400
A dog drags four objects through a yard. Which one will most likely require the most force to move?
cat, bone, the newspaper, a full trash can
What is a full trash can?
500
The measure of the pull of Earth's gravity on an object
What is weight?
500
When an object is either speeding up or slowing down
What are unbalanced forces?
500
How does the distance between objects affect the force of gravity between them?
What is the smaller the distance, the greater the force of gravity?