Air resistance

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

Tags

NGSS.MS-ESS2-5

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.

Tags

NGSS.MS-PS2-4

When dropped from the same height in air, which envelope will reach the ground first?

• crumpled envelope

• flat envelope

• both

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

When dropped from the same height in air, which apple will reach the ground first?

• half apple

• full apple

• both

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

When dropped from the same height in air, which object will reach the ground first?

• rock

• feather

• both

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Two parachutists jump from the same height. Which parachutist will reach the ground first?

• yellow

• green

• both

Tags

NGSS.MS-PS2-4

Which parachute experiences more air resistance?

• yellow

• green

Tags

NGSS.MS-PS2-2

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.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which person experiences the greatest air resistance or drag?

• Person A

• Person B

• Person C

Tags

NGSS.MS-PS2-2