Show:
Friction
Friction II
Gravity
Gravity II
Scramble
100
Friction
What is the force that opposes motion between to surfaces that touch?
100
Rolling Friction
What is the force between wheels and the floor?
100
Gravitational Force
What pulls objects toward each other?
100
Earth
What has a large gravitational force ?
100
Pushing a book on a table
What is an example of friction?
200
Rough surface
What is a source of friction?
200
Static Friction
What is it when force is applied to an object but the object does not move?
200
Object with small mass
What is small gravitational force?
200
Weight
Changes when gravitational force changes?
200
Basketball and tennis ball falling to the ground at the same time.
What is example of gravity?
300
Applying greater force
What creates more friction?
300
Brakes on your bicycle, wax on a snow board
What is helpful friction?
300
Large gravitational force
What do objects with large masses have?
300
Newton
What is the unit of measure of gravitational force?
300
Make the surface rougher
How do you increase friction?
400
Sliding Friction
What force opposes the movement of objects?
400
Lubricant
How is friction reduced?
400
Distance Increases between objects
What happens when there is a decrease in gravitational force?
400
Sir Isaac Newton
Who developed the Law of Universal Gravitation?
400
Parachute
What is and example of friction and gravity?
500
Nothing to stop movement
What happens when there is no friction?
500
Basketball shoes on a court.
What is an example of the sound of friction?
500
Mass increases between objects
What happens when there is an increase in gravitational force?
500
Applies to all objects in the universe
Why is the law of gravitation called "universal"?
500
Mass
What is the amount of matter in all objects?