Quiz about Conservation of Energy Mechanical Energy

Question 1

When Ava swings on a swing set, at which point is kinetic energy highest?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 2

Henry is swinging on a playground swing. When does he have the most kinetic energy?

Accepted Answer

at the bottom of his swing

Answer

at the top of his swing

Question 3

Michael and Avery are observing a pendulum in motion. According to the Law of Conservation of Energy, when the pendulum swings and one form of energy is transformed into another, __________ energy is lost in the process

Accepted Answer

no

Answer

some

Answer

all

Question 4

During a science class, Michael learned that _________ CANNOT be created or destroyed

Accepted Answer

energy

Answer

transformation

Answer

motion

Answer

pendulums

Question 5

Emma is riding her bicycle down a hill and notices that as she applies the brakes, some of the bicycle's kinetic energy is transformed into __________ energy.

Accepted Answer

thermal

Answer

electrical

Answer

nuclear

Answer

mechanical

Question 6

Emma and Michael are observing a wind turbine. They learn that ________ energy is the energy due to the motion and position of an object.

Accepted Answer

Mechanical

Answer

Chemical

Answer

Electrical

Answer

Radiant

Answer

Thermal (heat)

Question 7

As Michael rides his bicycle faster, his mechanical kinetic energy __________.

Accepted Answer

increases

Answer

decreases

Answer

doesn't change

Question 8

When Avery rides her bicycle down a hill, __________ energy is stored energy, __________ energy is the energy an object has due to its motion.

Accepted Answer

Potential, kinetic

Answer

Kinetic, mechanical

Answer

Kinetic, potential

Answer

Mechanical, potential

Question 9

Priya and Arjun are discussing how energy transformations occur in a roller coaster ride. They note that energy itself is __________ lost during the ride.

Accepted Answer

never

Answer

always

Answer

often

Answer

rarely

Question 10

When Sophia and Oliver ride a roller coaster and it gets to the top of the hill to go downhill

Accepted Answer

potential energy is converted into kinetic energy.

Answer

kinetic energy is converted into potential energy.

Answer

electrical energy is converted into potential energy.

Answer

potential energy is converted into electrical energy.

Question 11

Ava and Mia are riding their bicycles downhill. When Ava puts on the brakes of her bicycle, friction causes some of the mechanical energy to transfer to thermal energy.

Accepted Answer

True

Answer

False

Question 12

A ball is thrown vertically upwards. At the highest point of its trajectory, what happens to its mechanical energy?

Accepted Answer

It is entirely potential energy.

Answer

It is entirely kinetic energy.

Answer

It is equally divided between kinetic and potential energy.

Answer

It is lost to the surroundings.

Question 13

In a closed system, a roller coaster car is at the top of a hill. As it descends, which of the following statements is true according to the conservation of mechanical energy?

Accepted Answer

The total mechanical energy remains constant.

Answer

The total mechanical energy increases.

Answer

The total mechanical energy decreases.

Answer

The total mechanical energy is converted to thermal energy.

Question 14

A pendulum is swinging back and forth. At which point is the potential energy at its maximum?

Accepted Answer

At the highest point of the swing.

Answer

At the lowest point of the swing.

Answer

At the midpoint of the swing.

Answer

Potential energy is constant throughout the swing.

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