IB Physics SL Topic 1 - Measurements and Uncertainties

Which of these is a base quantity?

• current

• power

• energy

• acceleration

Which of these is a derived unit?

• amp

• kilogram

• joule

• second

Which of these numbers represents the prefix 'nano'?

The unit [kgms^-2] is the same as a...

• joule

• kilogram

• newton

• volt

What is the type of error due to a stopwatch being stopped too quickly, making all the time readings off by a similar margin?

• random error

• calculation error

• description error

• systematic error

A cube has a side length of 10 cm ± 1 cm. The volume of the cube is...

Which of these is a scalar quantity?

• displacement

• power

• velocity

• acceleration

Which of these is a vector quantity?

• pressure

• mass

• force

• time

A vector quantity has...

• size only

• size and direction

• direction only

• neither size nor direction

The radius of a sphere is r=12.37m.

What is the volume of the sphere correct to two significant figures?