Untitled spreadsheet - Sheet1

Question 1

What is energy?

Answer 1

The ability to do work.

Question 2

What is potential energy?

Answer 2

Stored energy (because of its position).

Question 3

What is kinetic energy?

Answer 3

Energy due to motion.
or
Energy in motion.
or
Energy of motion.

Question 4

What is mechanical energy?

Answer 4

The ability to make something move.

Question 5

What is chemical energy?

Answer 5

Energy from food that can be converted to the ability to move.

Question 6

What is electrical energy?

Answer 6

Moves motors that help people perform tasks.

Question 7

What is motion?

Answer 7

The change of an object’s position. Includes distance and direction.

Question 8

What is a reference point?

Answer 8

A fixed point/object used to determine if something is moving.

Question 9

What is speed and its formula?

Answer 9

Speed is a kind of rate; speed = distance ÷ time

Question 10

What is velocity?

Answer 10

The distance an object moves over a certain amount of time in a certain direction. Any change in speed or direction is a change in velocity.

Question 11

What is acceleration?

Answer 11

Acceleration is a change in velocity. Acceleration occurs when there is a speeding up, slowing down, or a change in direction.

Question 12

What is deceleration?

Answer 12

A type of acceleration that means to slow down.

Question 13

What is a force? Give three examples.

Answer 13

A push or a pull. Examples: gravity, pushing on a bicycle pedal, magnets, etc…

Question 14

What is friction?

Answer 14

The force that keeps objects from moving against other objects. Resists motion when two objects are in contact with each other.

Question 15

Give one example that would increase friction, and one example that would decrease friction.

Answer 15

Increase: pressure, texture, speed of motion
Decrease: smooth, rolling motion, lubricants, find powder

Question 16

What two things make up momentum?

Answer 16

Includes mass and velocity. Can be calculated using mass x velocity.

Question 17

Who came up with the Laws of Motion and where did he learn about them?

Answer 17

Truths about motion that Isaac Newton wrote from his observations and from the observations of Galileo Galilei.

Question 18

What is the First Law of Motion state?

Answer 18

An object tends to stay at the same velocity unless another force causes it to change. Or An object at rest or in motion tends to stay that way unless another force acts on it.

Question 19

What is inertia?

Answer 19

Resistance to a change in motion. It also sums up the effects of the First Law of Motion.

Question 20

What is gravity? What has gravity?

Answer 20

The pull of one object on another. All objects that have mass have gravity, but only very large objects have any detectable gravity. The larger the object’s mass, the stronger the gravitational pull.

Question 21

What is mass, and does gravity affect mass?

Answer 21

The amount of matter in an object. Gravity does not change the amount of mass in an object.

Question 22

What is weight, and does gravity affect weight?

Answer 22

The description of gravitational pull on an object. The weight of a certain amount of mass can change even though the mass doesn’t change. Example is weight on the moon vs. on the earth.

Question 23

What is the Second Law of Motion?

Answer 23

The amount of force needed to move an object is directly related to the object’s mass and acceleration. F = MA or F = M x A

Question 24

What is the Third Law of Motion?

Answer 24

For every action force there is an equal and opposite reaction force. Forces occur in pairs.

Question 25

What is air resistance?

Answer 25

The force that air exerts on objects moving through air.

Question 26

Give an example of two things that can take up the same amount of space, but have different masses.

Answer 26

Cup of air and a cup of sand.

or

Cup of feathers and cup of sand.