PHYSICS- Fact Revision Flashcards
1
Q
What are the three things force can change?
A
Speed, direction, shape
2
Q
What are balanced forces
A
Forces that are the same / do not over weigh under way eachother
3
Q
What are unbalanced forces
A
When one force is greater than the others.
4
Q
What 2 forces are in a pain
A
Gravity and reaction force
5
Q
What are the types of force
A
Non - contact and contact force.
6
Q
Example of good friction
A
When lighting up a match
7
Q
Example of bad friction
A
When moving furniture around the house
8
Q
What is mass
A
The amount of matter in a substance ( kg )
9
Q
What is weight
A
The amount of gravity pulling m a object (N)
10
Q
One formula to workout weight (N)
A
Weight (N) = mass (kg)xgfs( gravitational field strength )(n/ kg )
