What is a physical quantity?
Something that can be measured
The size of a numerical value
A measurement with no units
What does 'magnitude' mean?
What is a scalar quantity?
A physical quantity that has magnitude and an associated direction
A physical quantity that has an associated direction only
A physical quantity that has magnitude only
What is a vector quantity?
Which of these is a scalar quantity?
Acceleration
Velocity
Speed
Force
Energy
Which of these is a vector quantity?
Displacement
Distance travelled
Temperature
Thermal energy
Weight
Which of these is NOT a vector?
200 metres west
20 kilometres
2 metres upwards
If a car travels 48 m east in 3 seconds, what is its velocity?
16 m/s
16 m/s east
144 m/s east