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Flashcards in Kinematics Deck (42)
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1

What is the standard measure for distance/length?

Meter

2

What is the standard measure for time?

Seconds

3

What is the standard measure for mass?

Kilogram

4

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

Large; Slow

5

In classical mechanics, all objects are considered ___________________.

Particles

6

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

Particle

7

Quantity with magnitude and units that is always positive

Scalar

8

Quantity with magnitude, units and direction

Vector

9

T/F Scalar quantities can be positive or negative.

False. Scalar quantities are always positive.

10

T/F Vector quantities can be positive or negative.

True. Depends on which way you are going.

11

Total length of path traveled

Distance

12

Distance is a _______________ value

Scalar

13

Distance is measured in ______________.

Meters

14

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

Displacement

15

Displacement is a __________ value

Vector

16

T/F Displacement can be positive or negative.

True. Displacement is a vector value.

17

Displacement is measured in __________.

Meters

18

1 meter is equal to about how many feet?

3.3

19

The rate at which distance is covered

Speed

20

Speed is a ________________ value

Scalar

21

T/F Speed can be either positive or negative.

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

22

Speed and Velocity are both measured in what?

Meters/Second

23

Average Speed (formula)

v=d/t
(Speed=total distance divided by total time)

24

Speed of light

186,000 miles/second

25

Distance traveled (formula)

d=vt
(Distance=speed x time)

26

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

Velocity

27

Velocity is a _____________ quantity.

Vector

28

T/F: Velocity must be positive.

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

29

Velocity is based on what?

Displacement over time

30

When you change ______________, you change velocity.

Direction