SI Units
What is the SI unit for distance?
metres (m)
What is the Māori word for speed (velocity)
tere
A car moves 100m in 5 seconds. What is it's velocity?
20 m/s
What are the units for forces?
Newton
What is the variable you change in a fair test?
independent variable
What is the SI unit for time?
seconds (s)
What is the Māori word for acceleration?
whakatere
A car moves 500m in 10 seconds. What is it's velocity?
5 m/s
What is the name of the force that slows down motion?
What are the variables you keep the same called?
controlled variables
What is the SI unit for mass?
kilograms
What is the Māori name for September?
Mahuru
A car moves 1000m in 100 seconds. What is it's velocity?
10 m/s
A car motor has a push force of 500N, and the car experiences friction of 200N. What is the resultant (net) force?
300N
What is the variable called that you measure in a fair test?
dependent variable
What is the SI unit for volume?
litres (L)
What is the Māori word for respect (the value)?
whakaute
Given the time and distance an object has moved, how do you calculate velocity (average speed)?
distance divided by time
If an object is moving at a constant speed, what can you say about the forces acting on it?
Do it more than once
What is the SI unit for velocity?
metres per second (m/s)
What is the Māori word for honesty?
pono
What is it called when velocity is changing?
acceleration
If something is accelerating, what can you say about the forces acting on it?
the forces are unbalanced / there is a net force
Why do you carry out a fair test?
So that you can make a valid conclusion