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12 Cards in this Set
- Front
- Back
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CAN MOTION BE MEASURED |
Yes.
To know what an object's speed is you need to know how far the object moves each second, minute or hour. |
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WHAT IS FORCE? |
A push or pull.
It can change the motion of an object. It can move something that is standing still. |
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WHAT IS GRAVITY? |
The force that pulls objects toward the center of the earth.
It can make leaves fall to the ground. |
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KINETIC ENERGY IS? |
ENERGY OF MOTION.
THE FASTER AN OBJECT MOVES THE MORE OF THIS ENERGY IT HAS. |
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WHAT IS WORK? |
WHEN A FORCE MAKES SOMETHING MOVE.
THE MORE FORCE YOU USE TO MOVE SOMETHING A CERTAIN DISTANCE, THE MORE WORK YOU DO. |
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WHAT IS FRICTION? |
A force that slows down or stops moving objects.
On smooth surfaces, it is less than on rough surfaces. |
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WHAT IS INERTIA? |
The tendency of an object to stay in motion or to stay still. Unless a force acts on an object the still object will remain still or a moving object will remain moving.
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WHAT IS FRICTION? |
A force that slows down or stops moving objects.
On smooth surfaces, it is less than on rough surfaces. |
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WHAT IS CHEMICAL ENERGY? |
ENERGY THAT RESULTS FROM CHEMICAL CHANGES.
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WHAT IS ENERGY? |
THE ABILITY TO DO WORK.
ANYTHING THAT DOES WORK USES THIS. |
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WHAT IS MECHANICAL ENERGY? |
THE ENERGY AN OBJECT GETS FROM ITS MOTION.
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P0TENTIAL ENERGY IS? |
STORED ENERGY.
ALL OBJECTS CAN HAVE KINETIC AND POTENTIAL ENERGY. |
