Units, Symbols, & Graphical Analysis

Question 1

Units for velocity

Answer 1

m/s
(meters/second are base units - default to using base units)

Question 2

Symbol for displacement

Answer 2

Δx
(must be Δx or “change in position,” and NOT only “x”)

Question 3

Symbol for acceleration

Answer 3

a
(must be lowercase!)

Question 4

Units for position

Answer 4

m
(meters are base units - default to using base units)

Question 5

What does the slope of a velocity-time graph measure?

Answer 5

Acceleration, a

Question 6

Units for speed

Answer 6

m/s
(meters/second are base units - default to using base units)

Question 7

What does the AREA under an acceleration-time graph measure?

Answer 7

Change in velocity, Δv

Question 8

Units for acceleration

Answer 8

m/s/s or m/s²

Question 9

Units for time

Answer 9

s

Question 10

Units for displacement

Answer 10

m
(meters are base units - default to using base units)

Question 11

Symbol for velocity

Answer 11

v
(must be lowercase)

Question 12

Symbol for position

Answer 12

x

Question 13

Symbol for time

Answer 13

t
(must be lowercase)

Question 14

What is the value of little g?

Answer 14

10 m/s² or 10 N/kg
(9.8 m/s² is also acceptable)

Question 15

What is the force of gravity equal to?

Answer 15

mg

Question 16

What are the units for force?

Answer 16

Newtons, N (or kg·m/s²)

Question 17

What is the symbol for the spring constant?

Answer 17

k
(must be lowercase)

Question 18

What are the units spring constant is measured using?

Answer 18

N/m (Newtons for every meter)

Question 19

What are the units for little g?

Answer 19

m/s² or N/kg

Question 20

What is Newton’s 2nd Law?

Answer 20

F=ma or a=F/m

Question 21

What is Newton’s 1st Law?

Answer 21

Balanced Forces = Constant Velocity
Unbalanced Forces = Changing Velocity

Question 22

What is Newton’s 3rd Law?

Answer 22

All forces come in pairs.
Force pairs are always equal in size an opposite in direction.