Ch2: Foundations of Physics

Question 1

What does prefix M mean?

Answer 1

Mega, 10^6

Question 2

What does prefix G mean?

Answer 2

Giga, 10^9

Question 3

What does prefix T mean?

Answer 3

Tera, 10^12

Question 4

What does prefix k mean?

Answer 4

Kilo, 10^3

Question 5

Put these prefixes in order smallest to largest: T,k,P,M,G

Answer 5

k, M, G, T, P

Kilo, Mega, Giga, Tera, Peta

Question 6

What does prefix d mean?

Answer 6

Deci, 10^-1

Question 7

What does prefix c mean?

Answer 7

Centi, 10^-2

Question 8

What does prefix m mean?

Answer 8

Milli, 10^-3

Question 9

What does prefix μ mean?

Answer 9

Micro, 10^-6

Question 10

What does prefix n mean?

Answer 10

Nano, 10^-9

Question 11

What does prefix p mean?

Answer 11

Pico, 10^-12

Question 12

What does prefix f mean?

Answer 12

Femto, 10^-15

Question 13

What does prefix P mean?

Answer 13

Peta, 10^15

Question 14

Put these prefixes in order, smallest to largest: f, p, d, μ, m, c, n

Answer 14

f, p, n, μ, m, c, d

Femto, Pico, Nano, Micro, Milli, Centi, Deci

Question 15

Is potential difference a scalar or a vector?

Answer 15

Scalar

Question 16

Is energy a scalar or a vector?

Answer 16

Scalar

Question 17

Is power a scalar or a vector?

Answer 17

Scalar

Question 18

Is momentum a scalar or a vector?

Answer 18

Vector

Question 19

What is the unit for momentum?

Answer 19

kgms^-1

Question 20

Is Amps an SI unit?

Answer 20

Yes

Question 21

What is a coulomb in SI units?

Answer 21

As

Question 22

What are the 7 SI base quantities?

Answer 22

Mass, Length, Time, Temperature, Amount of substance, Current, Luminous Intensity.

Question 23

What is a Joule in SI base units?

Answer 23

kgm^2s^-2

Question 24

Which of these (Pressure, depth, density, acceleration, mass, volume) are SI base units?

Answer 24

Mass and Depth (length)

Question 25

How is percentage uncertainty calculated?

Answer 25

Absolute uncertainty/ actual value x 100

Question 26

What do you do to uncertainty when values are added or subtracted?

Answer 26

Add the ABSOLUTE uncertainties

Question 27

What do you do to uncertainties when values are multiplied or divided?

Answer 27

Add the percentage uncertainty for each value

Question 28

What do you do to the uncertainty of a value when it is raised to the power of n?

Answer 28

Multiply percentage uncertainty by n