Measurement And SI Units

36. How many micrometers are in a meter?
a) 10
b) 100
c) 1000
d) 1000000

37. How many nanometers are in a meter?
a) 10
b) 100
c) 1000
d) 1000000000

38. How many picometers are in a meter?
a) 10
b) 100
c) 1000
d) 1000000000000

39. What is the SI unit for pressure?
a) pascal
b) newton
c) joule
d) watt

40. What is the SI unit for frequency?
a) hertz
b) watt
c) joule
d) pascal