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7 Cards in this Set
- Front
- Back
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the scientific name of how motion of an object can be described by its position, direction of motion, and speed. |
kinematics |
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difference between constant speed and average speed |
The constant speed is the speed of an object that is traveling at the same distance for a long period of time. the average speed is the distance traveled divided by the time. |
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the effects of friction on motion |
It will cause the motion to slow down, because friction is the force that resists motion. friction is increased, more energy is needed by the object to keep its momentum hence it will slow down |
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how all three relate to the lab |
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illustrate projectile motion |
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the effect of gravity and air resistance on falling objects |
A falling object will continue to accelerate to higher speeds until they encounter an amount of air resistance that is equal to their weight. Since the 150-kg skydiver weighs more (experiences a greater force of gravity), it will accelerate to higher speeds before reaching a terminal velocity. |
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apply newton's third law to explain various scenarios |
Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. |
