What Is Energy?

What is the term for the capacity to do work or bring about change?

• Force

• Energy

• Power

• Momentum

Imagine you're a superhero, flying through the sky at incredible speeds. The energy you're using to zoom around is called kinetic energy. Can you tell me what kinetic energy is equal to?

• It's equal to one half of my superhero mass multiplied by the square of my super speed

• It's equal to one half of my superhero mass multiplied by the cube of my super speed

• It's equal to one half of my superhero mass multiplied by my super speed to the fourth power

• It's equal to one half of my superhero mass multiplied by my super speed to the fifth power

Imagine you're a skydiver ready to jump out of the plane! The energy you have is your gravitational potential energy. Can you guess what it's equal to?

• The depth of the Mariana Trench x the volume of the ocean

• Your height above the ground x your mass

• The volume of the Pacific Ocean x the depth

• The diameter of the Earth x the diameter of the moom

Imagine you're a scientist studying energy. What unit would you use to measure the work done and energy?

• newtons

• joules

• hertz

• kilograms

Imagine you're a superhero and you're lifting a car to save a kitten. When you do this heroic act, some of your super energy is...

• transferred to the car.

• dissipated as heat, making you feel warm

• converted into potential energy, making you feel stronger

• converted into kinetic energy, making you move faster

Imagine you're a superhero, and your superpower is to control energy. How would you describe the rate at which you use your power?

• It's the speed at which I generate my energy

• It's the speed at which I consume my energy

• It's the speed at which I transfer my energy

• It's the speed at which I use my energy

Imagine you're a supreme basketball player who is about to make the shot of a lifetime! Where does the ball's potential energy come from?

• Your shoes

• Your uniform's color

• The basketball hoop

• The ball's position

Imagine you're a superhero and your superpower is to stretch rubber bands. When you stretch a rubber band, what kind of energy does it have?

• Is it kinetic energy, like when you're running at super speed?

• Or is it potential energy, like when you're about to leap over a tall building?

• Could it be thermal energy, like the heat from your super breath?

• Or is it chemical energy, like the power stored in your superhero snacks?

Imagine you're a superhero who can control the speed of objects. You notice that a change in an object's speed has a(n) _______ effect on its kinetic energy than a change in its mass.

• greater

• lesser

• equal

• no

Imagine you're a daring mountain climber, standing triumphantly at the peak. What type of energy do you have?

• potential energy

• kinetic energy

• thermal energy

• chemical energy