Physics Vocab

Front 1

Force

Back 1

Strength or power exerted upon an object

He used all his force in opening the window.

Front 2

Newton

Back 2

The standard unit of force in the International System of Units

The unit of force was named by Sir Isaac

Newton

Front 3

Net force

Back 3

Net force is the overall force acting on an

object.

The net force of that truck was 2000N

Front 4

Unbalanced force

Back 4

Forces that produce a non-zero net force,

which changes an object's motion.

The result of an unbalanced force is

acceleration of an object.

Front 5

Balanced force

Back 5

Balanced forces do not cause a change in

motion.

Balanced forces are equal in size and opposite

in direction.

Front 6

Newtons 1st law

Back 6

His first law states that every object will

remain at rest or in uniform motion in a

straight line unless compelled to change

its state by the action of an external force.

Front 7

Newtons 2nd law

Back 7

The second law states that the acceleration

of an object is dependent upon two variables, the net force acting upon the object and the mass of the object.

Front 8

Newtons 3rd law

Back 8

If an object A exerts force on an object B, then object B exerts an equal and opposite force

on object A. The law is also commonly stated

as To every action there is an equal and

opposite action.

Front 9

Inertia

Back 9

Inertia is the resistance of any physical object

to any change in its state of motion

Inertia is a property of matter.

Front 10

Momentum

Back 10

The quantity of motion of a moving body,

measured as a product of its mass and

velocity.

Mass times velocity equals Momentum

Front 11

Gravity

Back 11

The force that attracts a body toward the

center of the earth, or toward any other

physical body having mass.

Gravity will pull you toward the center of the earth.

Front 12

Friction

Back 12

The resistance that one surface or object

encounters when moving over another

Friction is everywhere, There are many types

of friction.

Front 13

Mass

Back 13

Any thing that has Matter

Mass is in almost any object

Front 14

Weight

Back 14

The force that gravitation exerts upon a body

You have more weight on earth than on the moon

Front 15

Free fall

Back 15

Downward movement under the force of

gravity only

You free fall at an acceleration of 9.8m

Front 16

Terminal velocity

Back 16

The constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents

further acceleration.

Front 17

Air resistance

Back 17

Air resistance is the frictional force air exerts against a moving object.

Air resistance affects all moving objects, from

airplanes, rockets, and trains to car, bicycles,

and even living things.