Topic 1 Flashcards Preview

IB SL Physics > Topic 1 > Flashcards

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

How do you find displacement?

s2-s1