Chap 3: Force and pressure Flashcards
1
Q
What is contact force?
A
Forces that act between objects in physical contact
2
Q
What is non contact force?
A
Forces that do not require the object to be in physical contact
3
Q
Examples of contact force
A
Tension, normal force, friction & air resistance.
4
Q
Examples of non contact force
A
Gravitational force, Electrostatic force & Magnetic force.
5
Q
What is weight?
A
Gravitational force exerted on the object by earth
6
Q
What is mass?
A
The amount of matter in object
7
Q
What is gravitational force?
A
Force that arises between 2 objects due to their masses
8
Q
What is gravitational field?
A
The region which a mass experiences a gravitational force
9
Q
What is density?
A
Amount of mass per unit volume
10
Q
What is pressure?
A
Measure of how a force can change the shape of an object or body
11
Q
A
