Contact forces
The force that acts against moving objects/slows things down.
Friction
Causes objects to fall to the ground.
Gravitational/gravity
10N <--- --->10N
This part of the cell contains DNA.
Nucleus
The 4 magnetic materials
Iron, nickel, cobalt, steel
The force that slows down a person falling through the air.
Air resistance
The person who discovered gravity
Sir Isaac Newton
25N <--- ------>50N
25N --->
What everyday substance is made of sodium chloride?
Salt
A type of magnet we can turn on or off
Electromagnet
The force generated by an engine driving something forward.
Thrust
Opposite poles attract.
Like poles _______.
Repel
5N<--- --->2N
7N<---
10N <----
The 8th planet from the Sun.
Neptune
The 3 C's
Coil, current, core
The force that keeps things floating in water
What is the strength of gravity on earth?
10N
A car at rest experiences a balanced resultant force. What happens to the motion of the car?
Stays at rest
Does a balanced or an unbalanced force cause an object's motion to change?
Unbalanced
Two ways to demagnetise a magnet
Hitting the magnet (or dropping it), heating the magnet
The force that keeps birds and aeroplanes in the air.
Lift
How do you find weight? (formula)
mass X gravitational field strength
A car experiences a thrust force of 58N pushing it forward. A friction force of 12N and air resistance of 6N pushes back on the car. Calculate the resultant force.
40N forward
The solution added to a substance to test for protein
Biuret's Reagent
The "mini magnets" inside magnetic materials
Domains