Force Flashcards
1
Q
Force is measured in ?
A
Neutrons
2
Q
Different types of force (4)
A
- gravity
- magnetic
- electric
- friction
3
Q
How to reduce friction ?
A
Lubrication
- oil, liquid polish, soap
4
Q
Differences between weight and mass (3)
A
- weight is measured by neutrons
- weight has direction
- weight of an object can change
Mass
- mass is measured in grams/ kilograms
- doesn’t have direction
- mass of object remains constant
5
Q
Hookes law
A
- Hooke’s law states that the extension of an elastic body (a spring) is directly proportional to the force causing the extension.
6
Q
What is force
A
Force is something that can cause an object to change in velocity or accelerate
