Chapter 9 Cards

Question 1

Motion

Answer 1

An object is in motion if its distance from another object is changing.

Question 2

Reference point

Answer 2

A reference point is a place or object used for comparison to determine if something is in motion.

Question 3

Distance

Answer 3

Distance is the length of a path between two points.

Question 4

Displacement

Answer 4

Displacement is the length and direction that an object has moved from it starting point.

Question 5

Vector

Answer 5

A quantity that consists of both a magnitude and a direction is called a vector.

Question 6

Speed

Answer 6

The speed of an object is the distance the object travels per unit of time.

Question 7

Average speed

Answer 7

divide total distance traveled by the total time.

Question 8

Instantaneous speed

Answer 8

is the rate at which an object is moving at a given instant in time.

Question 9

Velocity

Answer 9

is speed in a given direction.

Question 10

Slope

Answer 10

Steepness of a line on a graph.

Question 11

Acceleration

Answer 11

Is the rate at which velocity changes with time.

Question 12

Work

Answer 12

Is done when an object is caused to move certain distance.

Question 13

Energy

Answer 13

is the ability to do work or cause change.

Question 14

Kinetic energy

Answer 14

The energy an object has due to its motion.

Question 15

Potential Energy

Answer 15

is energy that is potential.

Question 16

Gravitational potential energy

Answer 16

is gravitational energy that is potential.

Question 17

Elastic potential energy

Answer 17

is elastic energy that is potential

Question 18

Mechanical energy

Answer 18

energy that is mechanical

Question 19

Law of conservation

Answer 19

States that when one form of energy is transformed to another, no energy is destroyed in the process.