Momentum, energy, work and power Flashcards
1
Q
What are the two main factors that affect your total stopping distance?
A
- Thinking distance
2. Braking distance
2
Q
What are the two things that affect your thinking distance?
A
- Reaction time
2. How fast you’re going
3
Q
What are the four things that affect the braking distance?
A
- How fast your going
- Your vehicles mass
- Condition of brakes
- How good the grip is
4
Q
Fill in the gap:
Momentum _____ = Momentum _____
A
- Before
2. After
5
Q
Fill in the gap:
When a ___ moves an object, energy is _________ and ____ is done
A
- Force
- Transferred
- Work
6
Q
What is power measured in?
A
Watts or J/s
7
Q
Fill in the gap:
________ energy is energy of movement
A
- Kinetic
8
Q
What happens to the stopping distance of a car when the speed increases?
A
It also increases
9
Q
What is gravitational potential energy?
A
Energy due to height
10
Q
What is the principle of conservation of energy?
A
Energy can’t be created/destroyed, only transferred from one form to another
