Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Work Done (J) |
Work Done (J)= Force(N) × Distance (Metres) |
|
|
Weight (N) |
Weight(N) = Mass (kg) ×Gravity (N/kg) |
|
|
Δ in an object's PE (Change inan object's gravitational potential energy) |
Δ in an object's PE= Weight (N) × Δ of height (m) |
|
|
Δ Gravitational Potential Energy (EP) |
ΔEP = Mass (kg) ×gravitational field strength × change of height (ΔH) |
|
|
Kinetic energy (J) |
Kinetic energy(J) = 1/2 mass (kg) ×speed squared (metres per second) |
|
|
Elastic potential energy, Ee (J) |
Ee (J) = 1/2 spring constant ×extension squared (Newtons per metre) (metres squared) |
|
|
Efficiency (%) |
Useful Output (J) / Total Input ×100 |
|
|
Power (Watts) |
Energy (J)/ Time (seconds) |
|
|
Power wasted |
Power wasted= total power in- useful power out |
