Physics Final

A cart at the top of a 300 m hill has a mass of 40 kg.  What is the cart’s gravitational potential energy?

Equation: GPE = m * g * h

• 12,000 J

• 17,600 J

• 117,600 J

• 40 J

An apple in a tree has a gravitational potential energy of 175 J and a mass of 0.36 g.  How high from the ground is the apple?

Equation: h = GPE/m * g

• 617.4 m

• .36 m

• 175 m

• 49.58 m

Find the gravitational potential energy of a light that has a mass of 13.0 kg and is 4.8 m above the ground.

• 611.52 J

• 62.4 J

• 13 J

• 9.8 J

What is the kinetic energy of a jogger with a mass of 65.0 kg traveling at a speed of 2.5 m/s?

• 406.26 J

• 203.13 J

• 1592.5 J

• 65 J

What is the mass of a baseball that has a kinetic energy of 100 J and is traveling at 5 m/s?

• 100 g

• 40 g

• 8 kg

• 1250 kg

A student is hit with a 1 kg pumpkin pie. The kinetic energy of the pie 32 J. What was the speed of the pie?

• 8 m/s

• 64 m/s

• 1 m/s

• 32 m/s

What is the average velocity of a plane that traveled 3000 miles from NY to CA in 5.0 hours?

• 15,000 m/s

• 600 m/s

• .0016 m/s

• 0 m/s

A car is traveling at 100 km/hr north.  How many hours will it take to cover a distance of 750 km?

• 15 h

• 1 hr

• .13 h

• 7.5 h

A penguin accelerates from 2 m/s to 10 m/s in 4 seconds.  What is the penguin’s average acceleration?

• 2 m/s

• 2.5 m/s

• 3 m/s

• 10 m/s

Taylor rides her bicycle 2 km north, turns around, and then rides the bicycle 15 km back toward her starting point.

• 17 km north

• 17 km south

• 13 km north

• 13 km south