Electricity
There are two types of electricity, static and ...
Current
What are magnets mostly made from?
Iron
What is the unit for force?
Newton
What is the unit for mass?
Kg
What is the unit for speed?
metres per second or equivalent
A substance that allows electricity to move through it is called a ...
Conductor
What are the names of the two poles on a magnet?
North and South
What do we call it when two forces acting on an object are not equal?
Unbalanced
What is the unit for weight?
Newtons
Complete the equation:
Speed = distance / ______
time
Name the two types of circuit.
Series and parallel
What happens if you bring two north poles together? (Correct word needed)
They will repel
Name two non-contact forces
Gravity and magnetism
The weight of an object on earth depends on its mass and...
Gravity
What is my speed if I travel 15m in 3s?
5m/s
What is the name of the particles that move through a circuit?
Electrons
Name an animal that uses the Earth's magnetic field to navigate.
Whale or other correct.
Imagine a tug of war. One team pulls with a force of 150N, the other with a force of 75N. What is the NET force?
75N
Weight = mass x 10.
What is my weight on Earth if my mass is 34kg?
340N
How far have I traveled if I run at 10m/s for 30s?
300m
Imagine there are two bulbs wired in series and the power pack is delivering 12V. How much voltage is across each bulb?
6V
Name two ways in which the strength of an electromagnet may be increased.
Increase number of coils, increase current
What happens to the motion of a car if the thrust force is greater than the drag force?
It will accelerate
Gravity on the moon is 6 x less than gravity on Earth. If my mass on Earth is 60Kg, what will my weight on the moon be?
100N
Name three ways in which cars minimize friction.
Oil in engine, aerodynamic shape, low profile tyres or other