Science Exam definitions

15 cards·by vikki2173

What is friction?

The force that acts between materials that touch as they move past each other

What is gravity?

The force from the Earth upon an object

What is weight?

The measure of an objects relationship to gravity

What is mass?

The measure of the amount of matter an object is made of

What is inertia?

The property of a body to resist changes to its state of motion

What is the instantaneous speed?

The speed of an object at any given moment

What is the average speed?

The speed over the whole trip.

What is speed?

How fast an object is moving

What is velocity?

A speed in a given direction

What is acceleration?

The rate at which the velocity is changing

What is free fall?

When an object is falling under the influence of only the gravitational force

Whatt is elapsed time?

The time that has passed since the beginning of any motion

What is a projectile?

Any object that moves through the air or space, acted on only by gravity/air resistance

What is a projectile?

Any object that moves through the air or space, acted on only by gravity/air resistance

What is air resistance?

The friction of something moving through air