On the Move
A Magnetic Attraction
Gravity
Keeping Afloat
Fair Test
100
A push or a pull
What is a force?
100
The ends of a magnet
What is a pole?
100
The standard unit of force
What is a Newton?
100
The upward push on an object that is floating on top of or submerged in a fluid
What is buoyancy?
100
The variable that is manipulated
What is the independent variable?
200
The force of gravity pulls a tennis ball to Earth, magnets attract each other or some metals, if you rub a pen with a cloth, you can pick up small pieces of paper with an electrostatic force
What is a non-contact force?
200
The small parts that make up a magnet
What is a domain?
200
A measure of the amount of material in an object of substance, it is the same wherever it is in the universe
What is mass?
200
The pulling of particles in a liquid towards each other
What is surface tension?
200
The variable that is measured
What is the dependent variable?
300
The upward arrow on the force diagram is the same size as the downward arrow on a force diagram
What are balanced forces?
300
The area where the magnetic force acts
What is the magnetic field?
300
Decreases as it gets further from the center of the Earth
What is gravity?
300
When the weight of the object is greater than the buoyant force
What is sinking?
300
These variables are kept the same for each trial
What are controlled variables?
400
An object can remain stationary, speed up, slow down, change direction of motion, alter its shape
What is the way a force can affect an object?
400
A coil of wire wrapped around an iron core, when an electric current is passed through the coil, the iron is magnetised
What is an electromagnet?
400
When the air resistance balances the force of gravity, the object stops speeding up
What is terminal velocity?
400
A way to reduce the amount of friction on an object moving through a liquid or gas
What is streamlining?
400
As the mass increases, the frictional force increases
What is the trend?
500
The total force is 20N forward
What is the net force?
500
Ball-bearings reduce friction between the axle and wheel hub of a skateboard
What is rolling friction?
500
A measure of the force of gravity pulling an object down towards the centre of a large object such as a planet, moon or star
What is weight?
500
He wondered about the force that caused the apple to fall from the tree, he wondered what would happen if the tree were much taller. In fact, he was able to deduce, after much time and many calculations, that the force that caused the apple to fall was the same force (gravity) that kept the moon in orbit around the Earth
Who is Isaac Newton?
500
If the temperature of the reactants is increased then the rate of reaction will increase
What is an hypothesis?