Forces And Motion Flashcards
1
Q
What is the force called when something is pulled across the floor?
A
Friction
2
Q
When is the force balanced?
A
When the forwards force is the same size as the force of friction
3
Q
What are the 2 forms of drag?
A
Water and air resistance
4
Q
What do drag forces do?
A
Act to slow objects down
5
Q
What is gravitational potential energy?
A
Energy stored in raises objects
6
Q
When do elastic materials store energy?
A
When they are deformed
7
Q
What is thermal energy?
A
Energy stored in the movement of particles
8
Q
What is the law of conservation of energy?
A
That energy cannot be created or destroyed but only transferred
9
Q
How do you work out speed?
A
Speed= distance divided by time
10
Q
What is the mean speed
A
The average
11
Q
What can you use to move more heavy objects?
A
A lever
