unit 4 lesson 1

Question 1

what is energy

Answer 1

energy is the ability to cause change

Question 2

what is kinetic energy

Answer 2

kinetic energy is the energy of motion

Question 3

what is potential energy

Answer 3

potential energy is energy of position or condition

Question 4

what is mechanical energy

Answer 4

mechanical energy is the sum of kinetic and potential energy

Question 5

what is light

Answer 5

light is a visible form of energy radiating from matter

Question 6

what is sound

Answer 6

sound is energy in the form of vibrations that can be heard

Question 7

what is chemical energy

Answer 7

chemical energy is energy stored in the bonds of the atoms and molecules of a substance

Question 8

what is thermal energy

Answer 8

thermal energy is the kinetic energy of moving particles

Question 9

what is temperature

Answer 9

temperature is the degree or measure of thermal energy in an object

Question 10

what is heat

Answer 10

heat is also called energy.

Question 11

what is nuclear energy

Answer 11

nuclear energy is the energy that hold protons and neutrons inside an atoms nucleus

Question 12

what is electrical energy

Answer 12

electrical energy is the energy of moving electrons

Question 13

name six forms that energy can take

Answer 13

electrical
nuclear
mechanical
chemical
thermal
potential
kinetic

Question 14

describe two ways that you depend on chemical energy

Answer 14

food-

batteries

Question 15

name three ways that heat can move

Answer 15

transferred through direct contact
through space
and in currents through liquid

Question 16

explain the difference between kinetic energy and potential energy

Answer 16

kinetic energy is the energy of motion and potential energy is the energy of position or condition
potential energy requires no movement

Question 17

how can your ability to play soccer or walk down the street be traced back to the sun

Answer 17

heat allows us to move