Forces And Shape Flashcards
1
Q
What effect does friction have ?
A
A force that opposes motion
2
Q
Name some forces
A
- friction
- upthrust
- weight
- magnetic
- electrostatic
3
Q
What is the strength of the earth gravity ?
A
9.8
4
Q
What is hookes law ?
A
The force applied = spring constant x extension
5
Q
How does a steel spring stretch ?
A
Follows hooks law up to elastic limit
6
Q
How does a rubber band stretch ?
A
Doesnt obey hookes law
- easy to stretch at first
- becomes more difficult
7
Q
What is a force
A
A push or pull of one body or another
