Science Chapter 7: Motion And Force

Front 1

position

Back 1

an object's location or place

Front 2

motion

Back 2

the change in an object's position

Front 3

reference point

Back 3

a motionless place or object used for comparison with a moving object

Front 4

How does someone determine motion?

Back 4

It is done my observing and object's position. If an object changes positions, it is in motion. Motion is determined by comparing an object to a reference point. If an object changes its position compared tot he reference point, the object is in motion.

Front 5

How many basic types of motion are there?

Back 5

3

Front 6

What are the 3 types of motion?

Back 6

1. translation

2. rotation

3. vibration

Front 7

translation

Back 7

the motion of an object along a line or a path from one position to another

Front 8

rotation

Back 8

the motion of an object around a central point

Front 9

vibration

Back 9

a back an forth or up and down motion

Front 10

True or False

There are many different forces that act on objects, producing motion.

Back 10

True

Front 11

How is motion possible?

Back 11

Because of forces present in the universe.

Front 12

True of False

All forces are either contact or noncontact.

Back 12

True

Front 13

contact force

Back 13

a push or pull of one object on another through direct touch

Front 14

noncontact force

Back 14

a push or pull on an object without direct touch

Front 15

field

Back 15

the area surrounding an object in which a noncontact force is active

Front 16

friction

Back 16

a force that opposes motion

Front 17

tension

Back 17

a pulling force that resists stretching

Front 18

What are 2 common types of contact forces?

Back 18

friction & tension

Front 19

What are types of noncontact forces?

Back 19

1. gravitational force

2. electrical force

3. magnetic force

Front 20

Where do noncontact forces occur?

Back 20

In fields (the space surrounding an object)

Front 21

True or False

The earth has a magnetic field

Back 21

True

Front 22

What scientist identified three laws to describe how object move?

Back 22

Isaac Newton

Front 23

What was Newton's First Law?

Back 23

An object tends to keep doing what it is doing.

An object at rest tends to stay at rest and an object in motion tends to stay in motion.

Front 24

inertia

Back 24

the resistance to a change in motion

Front 25

Describe in your own words Newton's First Law and what changes it.

Back 25

?

Front 26

Give an example of Newton's First Law and an example of what changes it.

Back 26

?

Front 27

What is Newton's Second Law?

Back 27

The greater an object's mass (the bigger it is), the greater the amount of force needed to accelerate the object.

It is takes more strength to move a heavy object.

Front 28

acceleration

Back 28

any change in the speed or direction of an object's motion

Front 29

How does Newton's second law relate to larger objects versus smaller objects?

Back 29

Smaller objects can be pushed faster and farther than larger objects. It takes less strength and energy to move smaller objects than it does to move larger ones.

Front 30

Give an example of Newton's Second Law and how it relates to objects of different sizes

Back 30

?

Front 31

What is Newton's Third Law?

Back 31

For every action there is an equal and opposite reaction.

Front 32

Give an example of Newton's Third Law.

Back 32

?

Front 33

relative motion

Back 33

the motion described from a particular reference point

Front 34

apparent motion

Back 34

the appearance of motion