Free Fall vs Non Free Fall

If a 50-N person is to fall at terminal speed, the air resistance needed is

• 50 N

• More than 50N

• Less than 50N

• There is not air resistance in nonfreefall

Tags

NGSS.HS-PS2-1

As the skydiver in NON FREE FALL falls faster and faster through the air, AIR RESISTANCE

• increases

• decreases

• stays the same

• doesn't change -air resistance is negated in Non-free fall

Tags

NGSS.HS-PS2-1

As the skydiver in NON FREE FALL falls faster and faster through the air, NET FORCE

• increases

• decreases

• stays the same

Tags

NGSS.HS-PS2-1

As the skydiver in NON FREE FALL falls faster and faster through the air, ACCELERATION

• increases

• decreases

• stays the same

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

As the skydiver in FREEFALL falls faster and faster through the air, ACCELERATION

• increases

• decreases

• stays the same

Tags

NGSS.HS-PS2-1

As the skydiver in NON FREE FALL falls faster and faster through the air, Velocity

• stays constant

• decreases until it hits terminal velocity

• increases until it hits terminal velocity

• increases 10 m/s each second

Tags

NGSS.HS-PS2-1

As the skydiver in FREE FALL falls faster and faster through the air, air resistance

• increases

• decreases

• stays the same

• doesn't change -air resistance is negated in free fall

Tags

NGSS.HS-PS2-1

Consider a heavy and a light person jumping together with same-size parachutes from the same altitude. Who will reach the ground first? (in NON-freefall)

• Light person

• Heavy person

• Both will reach at the same time.

Tags

NGSS.HS-PS2-1

Consider a heavy and a light person jumping together from the same altitude IN FREE FALL. Who will reach the ground first?

• Light person

• Heavy person

• Both will reach the ground at the same time.

When a 20-N falling object encounters 5 N of air resistance, its acceleration of fall is

• g

• less than g

• more than 9

Tags

NGSS.HS-PS2-1