Welcome to the Quiz!
This quiz contains 11 questions from a mix of 1 subtopics.
What is the frictional force exerted on an object moving through air or water called?
thrust
drag
lift
weight
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What is the effect of air and water resistance on moving objects?
they slow down the objects
they have no effect on the objects
they speed up the objects
they change the direction of the objects
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Which type of shapes can slip through air or water easily with less drag?
cubic shapes
irregular shapes
streamlined shapes
spherical shapes
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What happens when a skydiver first jumps from a plane?
neither air resistance nor gravity act on the skydiver
gravity is more than air resistance
air resistance and gravity are equal
air resistance is more than gravity
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What is terminal velocity?
the maximum speed a falling object can reach
the constant speed a falling object reaches when air resistance equals its weight
the minimum speed a falling object can reach
the speed at which an object falls without any air resistance
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What does it mean when forces are balanced?
the object is changing direction
the object is speeding up
the object is slowing down
the object is moving at a steady speed
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What happens to the speed of a skydiver when the air resistance is more than their weight?
the speed decreases
the speed increases
the speed fluctuates
the speed remains constant
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What is the effect of air resistance on a falling object?
it increases the object's speed
it decreases the object's speed
it changes the object's direction
it has no effect on the object's speed
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What happens when the weight of a falling object equals the air resistance it experiences?
the object moves at a constant speed
the object decelerates
the object stops falling
the object accelerates
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When the skydiver opens their parachute, the increases, causing the speed at which the skydiver falls to decrease.
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Explain how air resistance affects a skydiver's fall from a plane to the ground.
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