2020 IP review

Calculate the gravitational potential energy of a 2 kg banana hanging 5 meters above the ground.

(Use 10 m/s2 for gravity)

• 10 m/s²

• 100 m/s²

• 200 m/s²

What letter shows a person standing still?

• a

• b

• c

• d

A 350 kg motorcycle moves with a velocity of 10 m/s. Calculate the kinetic energy. Use (mv²/2)

• 3,500 J

• 35,000 J

• 17,500J

How much work is done if you apply a force of 12 N to a box and move it 3 meters. Use (W = F xD)

• 36 J

• 4 J

• .25 J

If a bicyclist travels 30 kilometers in two hours, her average speed is?

• 60 mph

• 15km/hr

If a bicyclist travels 30 kilometers in two hours, her average speed is:

• 30 km/hr

• 15 km/hr

• 10 km/hr

A helicopter speed increases from 30 m/sec to 60 m/sec in 5 seconds. What is the acceleration of this helicopter?

Use: (mV²/2)

• 6 m/s²

• 15 m/s²

• 20 m/s²

If 36 J of work is done in 6 seconds, how much power is used?

• 216 J

• 6 J

A boxer punches his opponent in the chest with a force of 500 N. The opponent's chest applies a force of 500 N on the boxer's glove. Which of Newton's laws explains this?

• 1rst

• 2nd

• 3rd

How much force is needed to accelerate a 75 kilogram skier at a rate of 3.0 m/s2 ? Use: F= m x a

• 75 N

• 225 N