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WorksheetsAir resistance
Total questions: 20
Worksheet time: 13mins
Friction caused by air is called...
air resistance
gravity
drag
weight
When surface area is less...
the force of gravity increases
the force of gravity decreases
air resistance increases
air resistance decreases
What are the conditions on the moon?
The moon has no air and no gravity as compared to Earth.
The moon has air and weaker gravity as compared to Earth.
The moon has no air and weaker gravity as compared to Earth.
The moon has no air and stronger gravity as compared to Earth.
When dropped from the same height in air, which envelope will reach the ground first?
crumpled envelope
flat envelope
both
When dropped from the same height in air, which apple will reach the ground first?
half apple
full apple
both
When dropped from the same height in air, which object will reach the ground first?
rock
feather
both
Two parachutists jump from the same height. Which parachutist will reach the ground first?
yellow
green
both
Which parachute experiences more air resistance?
yellow
green
Which statement is NOT true.
Air resistance acts upwards on the parachute
Gravity pulls the parachutist downward.
Force of air resistance acts in the opposite direction of the force of gravity.
Force of air resistance acts in the same direction as the force of gravity.
Which person experiences the greatest air resistance or drag?
Person A
Person B
Person C
When a parachutist jumps from a plane...
the force of gravity acting on the parachutist is less than the force of air resistance
the force of gravity acting on the parachutist is equal to the force of air resistance
the force of gravity acting on the parachutist is greater than the force of air resistance
When the force of gravity acting on the parachutist is equal to the force of air resistance...
the parachutist's speed increases.
the parachutist's speed remains the same (constant).
the parachutist's speed decreases.
When the parachutist opens his parachute...
the force of gravity acting on the parachutist becomes greater than the force of air resistance.
the force of gravity acting on the parachutist becomes equal to the force of air resistance.
the force of air resistance acting on the parachutist becomes greater than the force of gravity.
The greater the air resistance, less is the speed of the parachutist.
True
False
Which parachutist will fall with greater speed?
yellow
green
both fall at the same speed
When dropped from the same height in air, which object will fall down with less speed (slowly)?
feather
ping pong ball
both fall at the same speed
When dropped from the same height in vacuum, which object will fall to the ground first?
feather
ping pong ball
both
If both cars travel at the same speed, which hand will experience more air resistance?
A
B
both the same
If both cyclists travel at the same speed, which cyclist will experience less air resistance?
A
B
Which aeroplane nose will experience less drag when moving through the air?
rounded
pointy
