Potential and Kinetic Energy

Potential and Kinetic Energy

Objectives

1.Explore the Law of Conservation of Energy by differentiating between potential and kinetic energy.

2.Identify situations where potential energy is transformed into kinetic energy and vice versa. 

Multiple Choice

Potential and kinetic energy are both measured in

• Watts

• Kelvins

• Joules

• Newtons

Multiple Choice

Stored energy or energy due to its position is called

• mechanical energy

• potential energy

• kinetic energy

• thermal energy

Multiple Choice

The ability to do work by applying force is called

• work

• energy

• force

• net force

Multiple Choice

Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.

• height and mass

• friction and movement

• mass and movement

• height and friction

Multiple Choice

How could you increase the object's gravitational potential energy (GPE) without changing its distance from the ground (height) and gravity?

• Decrease the object's mass

• Increase the object's height

• Increase the object's mass

• Decrease the object's height

Multiple Choice

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Multiple Choice

Which would have the LEAST gravitational potential energy (GPE)?

• A ball sitting on the ground

• Moon viewed from the Earth

• An airplane flying 30,000 feet above the ground

• A rock sitting on top of Mt. Everest

Multiple Choice

Energy stored because of gravity is called:

• Gravitational Potential Energy

• Kinetic Energy

• Mechanical Advantage

• Chemical Energy

Multiple Choice

Which object has elastic potential energy?

• a hanging leaf

• a burning coal

• a rolling ball

• a stretched bow

Multiple Choice

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

• W

• Y

• X

• Z

Multiple Choice

A stretched rubber band represents what type of potential energy?

• gravitational potential energy

• elastic potential energy

• chemical potential energy

• kinetic potential energy

Multiple Choice

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• same

Multiple Choice

What two factors affect an object's kinetic energy?

• area and volume

• mass and weight

• weight and height

• mass and speed

Multiple Choice

As mass increases, KE ...

• increases
• decreases
• stays the same

Multiple Choice

Which is the best example of kinetic energy?

• a car parked on a steep hill 
• a tennis ball rolling across the court
• a picture hanging on the wall 
• a piece of coal before it's burned 

Law of Conservation of Energy: Energy cannot be created nor destroyed.

Multiple Choice

What are the two types of Mechanical Energy? (ME)

• Kinetic and Potential Energy
• Kinetic and Nuclear Energy
• Potential and Chemical Energy
• Thermal and Kinetic Energy

Multiple Choice

According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 

• destroyed, destroyed
• created, saved
• created, destroyed
• lost, found

Multiple Choice

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

Multiple Choice

Which pendulum position has maximum KE?

• 1

• 2

• 3

• 4

Multiple Choice

Which pendulum position has 50% PE and 50% KE?

• 1

• 2

• 3

• 4

Multiple Choice

Which pie chart represents the energy balance of the rollercoaster in this diagram?

• Choice A

• Choice B

• Choice C

• Choice D

Multiple Choice

In a roller coaster, where is there the most potential energy?

• at the end of the ride

• in the middle of the loop

• at the top of the highest hill

• at the top of a medium hill

Multiple Choice

When is the speed of a roller coaster the fastest?

• At the top of the initial hill

• As it moves towards the bottom of the hill

• At the end of the ride

Multiple Choice

Which pair of points have the same speed?

• Point B and F

• Point C and F

• Point D and H

• Point C and D

Multiple Choice

A 15,000-kilogram truck and a 3,000-kilogram van are moving alongside one another on a road. The vehicles are moving at the same speed, and the speed of both vehicles is constant.

Which of the following statements is true about the vehicles?

• The truck has more kinetic energy than the van.

• The van has more kinetic energy than the truck.

• Neither vehicle has any kinetic energy.

• The vehicles have the same kinetic energy.

Multiple Choice

Daniel and Robert went rowing. While Robert was rowing at a speed of 8 km/h, Daniel was rowing at a speed of 10 km/h in the opposite direction.

If the masses of the boats and their rowers are equal, which of the following is a true statement about their kinetic energies?

• Only Robert has kinetic energy because he is rowing in the forward direction.

• Robert has more kinetic energy than Daniel.

• Daniel has more kinetic energy than Robert.

• Only Daniel has kinetic energy because his energy cancels out Robert’s.

Multiple Choice

Juniper and her cousins are racing model cars they have built. Based on the table below, whose car has the most kinetic energy as it rolls down the road?

• Kylie

• Craig

• Sheldon

• Juniper

Multiple Choice

Which object on the shelf has the greatest potential energy?

• the red vase on the second shelf
• the blue vase on the top shelf
• the white box on the bottom shelf

Multiple Choice

These passengers are just starting their descent. What is happening?

• potential energy is changing to kinetic energy
•   kinetic energy is changing to potential energy

Multiple Choice

What increases as the passengers in the coaster go up the hill?

• fear
• potential energy
• kinetic energy

Multiple Choice

Potential energy depends on ______ and _______.

• height, mass

• weight, mass

• speed, mass

• height, speed

Multiple Choice

Which of the following statements about a skier skiing down a steep slope is true?

• His kinetic energy decreases and his potential energy increases

• His potential energy decreases and his kinetic energy increases

• His chemical energy increases

• Both his potential and kinetic energy increases

Multiple Choice

Which is an example of potential energy?

• a roller coaster speeding down a hill
• the pulled back string on an archers's bow
• releasing the strings on a guitar
• an electric current lighting a light bulb

Multiple Choice

Which of the following is an example of a change of kinetic energy into gravitational potential energy?

• a person parachuting out of a plane

• a car racing around an oval track

• a person skiing down a hill

• a ball being thrown up into the air

Multiple Choice

When a pendulum swings, at which point is kinetic energy the least?

• 1

• 2

• 3

• 4

Multiple Choice

When a pendulum swings, at which point is potential energy the least?

• 1

• 2

• 3

• 4

Multiple Choice

What kind of energy is in a person climbing a ladder?

• Potential
• Kinetic
• Both

Multiple Choice

What kind of energy is a person walking up the stairs?

• potential

• kinetic

• both

Multiple Choice

What kind of energy does a wound up toy car have?

• potential

• kinetic

• both