Kinematics

Question 1

What is the standard measure for distance/length?

Answer 1

Meter

Question 2

What is the standard measure for time?

Answer 2

Seconds

Question 3

What is the standard measure for mass?

Answer 3

Kilogram

Question 4

In the world of classical mechanics, objects are _________________ and move __________.

Answer 4

Large; Slow

Question 5

In classical mechanics, all objects are considered ___________________.

Answer 5

Particles

Question 6

Point-like mass having no real size and a finite mass

Answer 6

Particle

Question 7

Quantity with magnitude and units that is always positive

Answer 7

Scalar

Question 8

Quantity with magnitude, units and direction

Answer 8

Vector

Question 9

T/F Scalar quantities can be positive or negative.

Answer 9

False. Scalar quantities are always positive.

Question 10

T/F Vector quantities can be positive or negative.

Answer 10

True. Depends on which way you are going.

Question 11

Total length of path traveled

Answer 11

Distance

Question 12

Distance is a _______________ value

Answer 12

Scalar

Question 13

Distance is measured in ______________.

Answer 13

Meters

Question 14

Total change in position; how far you end up from where you began

Answer 14

Displacement

Question 15

Displacement is a __________ value

Answer 15

Vector

Question 16

T/F Displacement can be positive or negative.

Answer 16

True. Displacement is a vector value.

Question 17

Displacement is measured in __________.

Answer 17

Meters

Question 18

1 meter is equal to about how many feet?

Answer 18

3.3

Question 19

The rate at which distance is covered

Answer 19

Speed

Question 20

Speed is a ________________ value

Answer 20

Scalar

Question 21

T/F Speed can be either positive or negative.

Answer 21

False. Speed is a scalar value. It is always positive.

Question 22

Speed and Velocity are both measured in what?

Answer 22

Meters/Second

Question 23

Average Speed (formula)

Answer 23

v=d/t

Speed=total distance divided by total time

Question 24

Speed of light

Answer 24

186,000 miles/second

Question 25

Distance traveled (formula)

Answer 25

d=vt

Distance=speed x time

Question 26

The rate of change in position, or the rate at which displacement is covered.

Answer 26

Velocity

Question 27

Velocity is a _____________ quantity.

Answer 27

Vector

Question 28

T/F: Velocity must be positive.

Answer 28

False. Velocity is a vector quantity, so it can be positive or negative, depending on which way you move.

Question 29

Velocity is based on what?

Answer 29

Displacement over time

Question 30

When you change ______________, you change velocity.

Answer 30

Direction

Question 31

It is nearly impossible to maintain a ___________ _______________, unless we are motionless.

Answer 31

Constant Velocity

Question 32

Velocity (formula)

Answer 32

v=^x/t

Velocity=displacement over time

Question 33

One or more velocity is added to another, going in the same direction

Answer 33

Resultant Velocity

Question 34

On a position vs. time graph, position is on the ____ axis and time is on the ___ axis.

Answer 34

y; x

Question 35

On a position v. time graph, the slope of the line represents what?

Answer 35

A change in position over a period of time

Question 36

The slope of the line on a position v. time graph is the __________________ of the object.

Answer 36

Velocity

Question 37

T/F: Slope/Velocity is CONSTANT.

Answer 37

True.

Question 38

The rate change in velocity over time

Answer 38

Acceleration

Question 39

Acceleration (formula)

Answer 39

a=^v/t

Acceleration = change in velocity over time

Question 40

What are the three accelerators in an automobile?

Answer 40

The gas pedal
The Brake
The Steering Wheel

Question 41

T/F: Acceleration is getting slower or faster.

Answer 41

False. Acceleration is a change in velocity, whether negative or positive.

Question 42

Acceleration is a ________________ quantity.

Answer 42

Vector. It has direction.