Ch2 Forces And Shape Flashcards
1
Q
What is hookes law
A
The extension of an elastic band, spring, wire… Is directly proportional to the force applied to it
The graph is a straight line through the origin
2
Q
What is weight/gravitational force
A
The pull of the earth
3
Q
What is reacting force aka normal force
A
Upwards acting for us on an object (normal means at 90° angle from the ground)
4
Q
What is an electrostatic force
A
The force between two charges
5
Q
What is air resistance
A
Frictional forces of the air against the vehicle
6
Q
What is upthrust
A
The upward force that a liquid or gas exerts on a floating body in it
7
Q
What is magnetic force
A
The power that pulls forces together
