Changes in Force and Motion Vocab

Question 1

Acceleration

Answer 1

A change in motion caused by an unbalanced force acting on an object. The object must speed up, slow down, or change direction to be called acceleration.

Question 2

Direction

Answer 2

A straight path that an object can move along.

Question 3

Frame of Refrence

Answer 3

A system that uses coordinates or background objects to establish position or to measure movement of a point in space.

Question 4

Net Force

Answer 4

The sum of all the forces acting on an object.

Question 5

Speed

Answer 5

The rate or change in position with respect to time. Speed= distance divided by time

Question 6

Velocity

Answer 6

The distance traveled per unit of time (speed) in a given direction.

Question 7

Vector

Answer 7

A quantity having direction as well as magnitude that can be represented by an arrow.

Question 8

Magnitude

Answer 8

The size, quantity, or strength of a characteristic such as force or velocity.

Question 9

Friction

Answer 9

The resistance that one surface or object encounters when moving over another.

Question 10

Inertia

Answer 10

A property of matter by which it continues in its existing state of rest or motion unless changed by an external force.