3.1 Force, Mass And Acceleration

Front 1

What is the name of the scientists who discovered the laws of motion?

Back 1

SIR ISAAC NEWTON

Front 2

What is necessary to change motion?

Back 2

(LARGE ENOUGH) FORCE

Front 3

If a force is not applied to an object at rest then...

Back 3

IT WILL STAY AT REST.

Front 4

If a force is not applied to a moving object then...

Back 4

IT WILL CONTINUE MOVING IN THE SAME DIRECTION AT THE SAME SPEED

Front 5

A push or a pull is a

Back 5

FORCE

Front 6

Any action that has the ability to change motion is a

Back 6

FORCE

Front 7

An English unit for force is a

Back 7

POUND

Front 8

A metric unit for force is the

Back 8

NEWTON

Front 9

Which is larger, a pound or a Newton?

Back 9

POUND

Front 10

A Newton is equal to...

Back 10

1 KILOGRAM-METER PER SECOND SQUARED (kg.m/s^2)

Front 11

A metric unit for mass is...

Back 11

GRAMS

Front 12

The amount of matter is an object is its...

Back 12

MASS

Front 13

What property of matter resists the action of forces?

Back 13

MASS

Front 14

How does mass resist the action of forces?

Back 14

MAKING IT HARDER TO ACCELERATE OBJECTS

Front 15

A force caused by the effect of gravity on mass is

Back 15

WEIGHT

Front 16

A metric unit for weight is

Back 16

NEWTONS

Front 17

Which property will change on the Moon - mass or weight?

Back 17

WEIGHT (less gravity)

Front 18

Newton's first law of motion is

Back 18

INERTIA

Front 19

The property of an object to resist change in motion is

Back 19

INERTIA

Front 20

The amount of intertia an object has depends on the object's...

Back 20

MASS

Front 21

The Law of Inertia states that objects with greater mass are...

Back 21

HARDER TO CHANGE THE MOTION OF

Front 22

Newton's second law of motion is

Back 22

F = ma

Front 23

According to Newton's second law of motion, what causes accleration?

Back 23

FORCE

Front 24

According to Newton's second law of motion, what resists accleration?

Back 24

MASS

Front 25

According to Newton's second law, what ratio is equal to accleration?

Back 25

FORCE/MASS

Front 26

Change in speed or direction refers to

Back 26

ACCELERATION

Front 27

Is force necessary to keep an object in motion at a constant speed?

Back 27

NO

Front 28

Is force necessary to change an object's direction of motion?

Back 28

YES

Front 29

Is force necessary to slow an object down?

Back 29

YES

Front 30

Is force necessary to speed an object up?

Back 30

YES

Front 31

Is force necessary to make an object at rest move?

Back 31

YES

Front 32

The symbol for force is

Back 32

F

Front 33

The symbol for acceleration is

Back 33

a

Front 34

The symbol for mass is

Back 34

m

Front 35

The total of all forces is called the

Back 35

NET FORCE

Front 36

In a value for force, such as -60 N, the positive or negative sign indicates

Back 36

RELATIVE DIRECTION OF THE FORCE

Front 37

If forces are balanced and the net force is zero, the object is in

Back 37

EQUILIBRIUM

Front 38

If two equal forces pull in opposite directions they are called __ forces.

Back 38

BALANCED

Front 39

If a force pulling in one direction is greater than a second force pulling in another direction, the forces are called

Back 39

UNBALANCED

Front 40

What types of forces are required for an object to accelerate?

Back 40

UNBALANCED (or NET FORCE)

Front 41

If two objects have the same mass and they are pushed with the same force, their acceleration will be...

Back 41

THE SAME

Front 42

If two objects have the same mass and one is pushed with a greater force, the acceleration of that object is

Back 42

GREATER

Front 43

If one object has a greater mass than the other and both objects are pushed with the same force, the less mass will accelerate...

Back 43

FASTER