Unit 1 Terms

Question 1

Acceleration

Answer 1

The rate of change in velocity

Question 2

Acceleration due to gravity

Answer 2

The Acceleration of a freely falling object in the absence of air resistance, which near the earth’s surface is approximately 10 m/s^2

Question 3

Acceleration-Time Graph

Answer 3

Plot the Acceleration as a function of time

Question 4

Average Acceleration

Answer 4

Acceleration of an object measured over a given time interval

Question 5

Average velocity

Answer 5

The Velocity of an object measured over a time interval; the displacement of an object divided by the change in time during the motion

Question 6

Constant Acceleration

Answer 6

Acceleration which does not change during a time interval

Question 7

Constant Velocity

Answer 7

Velocity which does not change during a time interval

Question 8

Displacement

Answer 8

Change in position in a particular direction

Question 9

Dynamics

Answer 9

Deals with why objects move as they do

Question 10

Distance

Answer 10

The length moved between two points (scalar)

Question 11

Free Fall

Answer 11

Motion under the influence of gravity

Question 12

Initial velocity

Answer 12

The velocity at which an object starts at the beginning of a time interval

Question 13

Instantaneous

Answer 13

Value of a quantity at a particular instant of time, such as the instantaneous position, velocity, or acceleration

Question 14

Kinematics

Answer 14

The study of how motion occurs including distance, displacement, speed, velocity, acceleration, and time

Question 15

Mechanics

Answer 15

The study of objects, and the related concepts of force and energy

Question 16

Particle Model

Answer 16

Describes a moving object without reference to its size

Question 17

Position-Timne Graph

Answer 17

The graph of the motion of an object that shows how its position varies with time

Question 18

Speed

Answer 18

The ratio of distance to time

Question 19

Terminal velocity

Answer 19

The constant velocity of an object that is reached when the drag force equals the force of gravity

Question 20

Translational Motion

Answer 20

Objects that move without rotating

Question 21

Velocity

Answer 21

Ration of the displacement of an object to a time interval

Question 22

Velocity-time graph

Answer 22

Plot of the velocity of an object as a function of time, the slope of it is acceleration and the integral is displacement

Question 23

Vector

Answer 23

Arrow with magnitude and direction like displacement and speed

Question 24

Scalar

Answer 24

Value with magnitude but without direction like distance and speed