Stored energy due to the interactions between objects or particles.
100
What is work?
Work is the transfer of energy that occurs when a force makes an object move in the direction of the force while the force is acting on the object.
100
What are other forms of energy?
Mechanical energy, sound energy, thermal energy, electric energy, radiant-light energy, and nuclear energy.
200
What is the source of energy for a plant?
The Sun.
200
What are examples of objects with and without kinetic energy?
Answers may include: a moving car has kinetic energy and a parked car has no kinetic energy.
200
What are three different kinds of potential energy?
Gravitational Potential Energy, Elastic Potential Energy, and Chemical Potential Energy.
200
What are examples of how energy can help you do work?
Answers may include: lifting a book up onto a shelf, creating sounds, and pushing a grocery cart.
200
Is a car in motion an example of mechanical or sound energy? How about a loud classroom?
Yes, a car in motion shows mechanical energy. A loud classroom, like a stereo or an explosion, emits sound energy.
300
What are other ways energy might cause changes?
Examples are "the explosion of fireworks, the growth of an organism, the motion of an object."
300
How can a fast-moving bowling ball cause more change than a slow-moving bowling ball?
The fast-moving bowling ball has more kinetic energy than a slow-moving one and can cause more change because it is moving faster.
300
What is an example of gravitational potential energy?
Answers may include: a book lifted of a desk, a diver on a diving board, and an airplane in flight.
300
How is energy related to work?
Work is the transfer of energy that occurs when a force causes an object to move. For example, a student standing on the top of a flight of stairs has potential energy because work was done to move up the stairs.
300
What kind of energy does an oven use? Does a television use thermal or electrical energy?
A hot oven gives off thermal energy to cook. A television uses electric energy to display images and emit sound.
400
Look at the picture of the cat. What are some of the cat's warmest areas
Answers may include "eyes, mouth, ears, face, and paws."
400
What is mass?
The mass is the amount of matter in a material.
400
Its elastic potential energy increases when the elastic band is elongated and deformed. This change in shape is where the elastic potential energy is stored; the elastic band will cause change in order to return to its original shape.
What changes when an elastic band is stretched?
400
Does a person work when he or she lifts a box?
Yes, work is done when lifting a box because the object is moving in the direction of the force.
400
What object can you think of that shine?
Answers may include: the Sun, stars, flashlights, and lightbulbs.
500
Where would a car's brightest and darkest areas be if it had just finished a long drive?
The hood and wheels would be the brightest. The windows might glow if the driver had on the heater. The sides, top, and trunk would be darker because they would be cool.
500
How does kinetic energy change as you quickly walk to your class and then sit at your desk?
As you quickly walk, motion and kinetic energy increase; both decrease when you sit down.
500
What are examples of chemical potential energy in your life today?
Examples may include: food, gasoline, firewood.
500
Does a person work when he or she holds a box in the air?
No, by holding the box there is no change in the position of the box.
500
How are mechanical energy and sound energy different?
Mechanical energy is related to objects; sound energy is related to sound waves.