Vectors And Scalars Flashcards
What two measurements are needed to calculate speed?
Distance and time
What does acceleration mean?
Speeding up or slowing down
What is a force?
A push or pull
What does mass mean?
Amount of substance
It is measured in kg
What is a vector quantity?
A quantity that has both size and direction Eg: force Velocity Displacement Momentum Acceleration
What is a scalar quantity?
A quantity that only has magnitude (size) but not a direction Eg: Mass Distance Energy Speed
What is displacement?
The distance travelled in a particular direction
Vector
What is velocity?
The speed of an object in a particular direction. This makes it a vector
What is weight?
Weight is the force pulling an object downwards.
This depends on the mass of an object and gravitational field strength
Weight is a VECTOR!
What is momentum?
A measure of motion, mass multiplied by velocity.
Momentum is a vector quantity