Year 7 forces Flashcards
1
Q
What is a force?
A
A push, pull or twist
2
Q
What contact force affects an object when it slides down a wooden ramp?
A
Friction
3
Q
What is a contact force?
A
A force that affects an object when the object is in contact with something.
4
Q
Give an example of a non-contact force.
A
Gravity, air resistance and magnetic force.
5
Q
What do you measure weight in?
A
Newtown (N)
6
Q
What is a balanced force?
A
When the forces in opposite directions have the same push, pull or twist making the object stationary.
7
Q
What is the equation for Gravity?
A
Weight ÷ mass
8
Q
What do you measure mass in?
A
Kilograms (kg)
9
Q
What do you use to measure Weight?
A
A Newton metre
10
Q
What is the equation for distance?
A
Speed × time
