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Force and Motion

What is a Force? A push or a pull
What unit is used to measure Force? Newtons
Name the force that opposes motion. Friction
What is the force of attraction between EVERY 2 objects in the universe? Gravity
As the distance between 2 objects INCREASES, The gravity ___. DECREASES
As the mass of objects increase, the gravitational force will ___ Increase.
How is mass different than weight? Weight is the gravitational force on your mass.
When gravity changes, your ____ will change, but not your ___. Weight, Mass
Friction always creates...? Heat
When friction occurs, what type of heat transfer is it demonstrating? Conduction
Due to gravity, the Earth pulls all things... Toward the center of the Earth
Motion is a.... Change in position
True or False... Starting, and stopping are examples of motion? True
Balanced forces produce NO MOTION
Unbalanced forces produce... Motion in the direction of the larger force (a Net Force)
A net force is... The difference in size between 2 forces
A net force produces..... Motion in the direction of the larger force
Friction is....(definition) The force OPPOSING Motion
True or false: Friction exists when things move through the air? True
The friction of rubbing your hands together produces HEAT. True
True or False: The best way to DECREASE friction is to add sandpaper to BOTH objects? FALSE - That adds MORE friction
True or False:The best way to DECREASE friction is to add oil or a lubricant to both surfaces. True
True or False: If you add sandpaper to both surfaces of moving objects, it will take more force to move them? True
True or False: An example of unbalanced forces include the Earth revolving around the Sun? True
True or False: An example of Balanced Forces is the globe sitting on my desk. True
Created by: chamberlin819