Flashcards in Topic 1 Deck (75):

1

## What is the base unit for length?

### meter

2

## What is the symbol for meter?

### m

3

## What is the base quantity of a meter?

### length

4

## What is the base unit for mass?

### kilogram

5

## What is the symbol for a kilogram?

### kg

6

## What is the base quantity for a kilogram?

### mass

7

## What is the base unit for time?

### second

8

## What is the symbol for a second?

### s

9

## What is the base quantity for a second?

### time

10

## What is the base unit for a current?

### ampere

11

## What is the symbol for an ampere?

### A

12

## What is the base quantity for an ampere?

### current

13

## What is the base unit for temperature?

### Kelvin

14

## What is the symbol for Kelvin?

### K

15

## What is the base quantity for Kelvin?

### temperature

16

## What is the base unit of an amount of substance?

### mole

17

## What is the symbol for mole?

### mol

18

## What is the base quantity for a mole?

### Amount of substance

19

## What are derived units?

### units that are made up out of base units

20

## What are units that are made up out of base units?

### derived units

21

## What is the unit for force?

### Newton

22

## What does a Newton measure?

### force

23

## What is the unit for energy?

### Joule

24

## What does a Joule measure?

### energy

25

## What is the unit for pressure?

### Pascal

26

## What does a Pascal measure?

### pressure

27

## What is the unit for power?

### Watt

28

## What does a watt measure?

### power

29

## What is the unit for electric charge?

### Coloumb

30

## What does a Coulomb measure?

### electric charge

31

## What is the symbol for Newton?

### N

32

## What is the symbol for Pascal?

### Pa

33

## What is the symbol for Joule?

### J

34

## What is the symbol for watt?

### W

35

## How do you multiply scientific notation?

### multiply numbers and add exponents

36

## How do you divide scientific notation?

### divide numbers and subtract exponents

37

## What is precision?

### how well repeated measurements of a value agree with one another (exact)

38

## What is how well repeated measurements of a value agree with one another (exact)?

### precision

39

## What is accuracy?

### how well a measurement agrees with the true value (correct)

40

## What is how well a measurement agrees with the true value (correct)?

### accuracy

41

## What is calibration?

### an instrument that is precise but not accurate can be calibrated

42

## What is an instrument that is precise but not accurate can be calibrated?

### calibration

43

## When using an analog scale, what is the uncertainty?

### plus or minus half the smallest scale division

44

## On what scale is it when the uncertainty is plus or minus half the smallest scale division?

### analog scale

45

## When using a digital scale, what is the uncertainty?

### plus or minus the smallest unit shown

46

## On what scale is it when the uncertainty is plus or minus the smallest unit shown?

### digital scale

47

## When taking repeated measurement how do you find the uncertainty?

### find the difference between the average and the measurement that is furthest from the average

48

## When multiplying or dividing quantities, how do you find the resultant uncertainty?

### add the percentage uncertainties of the quantities that we are multiplying

49

## When adding or subtracting quantities, how do you find the resultant uncertainty?

### add the absolute uncertainties of the quantities we are measuring

50

## How do you find the order of magnitude?

### Put things in 10's and see how many you need (exponent) for estimation

51

## What is the order of magnitude for the size of subatomic particles to the extent of the visible universe?

### 10^-15 m to 10^25 m

52

## What is the order of magnitude for the mass of the electron to the mass of the universe?

### 10^-30 kg to 10^50 kg

53

## What is the order of magnitude for time for light to cross a nucleus to the age of the Universe?

### 10^-23 s to 10^18 s

54

## What is the order of magnitude for the size of a hydrogen atom?

### 10^-10 m

55

## What is the order of magnitude for the size of a proton?

### 10^-15 m

56

## What is the ratio of diameter of a hydrogen atom to its nucleus?

### 10^-10/10^-15 = 10^5

57

## What is displacement?

### the distance moved in a stated direction (the distance and direction from the starting point)

58

## What is the distance moved in a stated direction (the distance and direction from the starting point)?

### displacement

59

## Is displacement a vector?

### Yes

60

## What is velocity?

### the rate of change of displacement

61

## What is the rate of change of displacement?

### velocity

62

## Is velocity a vector?

### Yes

63

## What is acceleration?

### the rate of change of velocity

64

## What is the rate of change of velocity?

### acceleration

65

## Is acceleration a vector?

### Yes

66

## What is average speed/velocity?

### change in distance/displacement divided by time taken over a period of time

67

## What is the change in distance/displacement divided by time taken over a period of time?

### average speed/velocity

68

## What is instantaneous speed/velocity?

### the change in distance/displacement divided by time at one particular time

69

## What is the change in distance/displacement divided by time at one particular time?

### instantaneous speed/velocity

70

## Is motion relative?

### Yes

71

## What is a frame of reference?

### a point from which a situation is observed

72

## What is a point from which a situation is observed?

### a frame of reference

73

## What is a scalar quantity?

### can be described by a number with units

74

## What is a vector quantity?

### must be described by a number (its magnitude) and its direction

75