Flashcards in Equations Deck (21):

1

## What is the equation that links speed, distance and time?

### Speed=distance÷time.

2

## What is the equation that links weight, mass and gravitational field strength?

### W=m*g.

3

## What is the equation that links force, spring constant and extension?

### F=k*e.

4

## What is the equation that links acceleration, change in velocity and time taken?

### S=∆*t÷t.

5

## What is the equation that links resultant force, mass and acceleration?

### F=m*a.

6

## What is the equation that links momentum, mass and velocity?

### P=m*v.

7

## What is the equation that links kinetic energy, 0.5*mass*(speed*speed)?

### Ek=(1÷2)*m*(v*v).

8

## What is the equation that links gravitational potential energy, mass, gravitational field energy and height?

### Ep=m*g*h.

9

## What is the equation that links power, energy transferred and time?

### P=E÷t.

10

## What is the equation that links power, work done and time?

### P=W÷t.

11

## What is the equation for wave speed?

### V=ƒ*lamda.

12

## What is the equation that links charge flow, current and time?

### Ω=I*t.

13

## What is the equation that links potential difference current and resistance?

### V=I*R.

14

## What is the equation that links power, potential difference and current?

### P=V*I.

15

## What is the equation that links power, current and resistance?

### P= (I*I)*R.

16

## What is the equation that links energy transferred, power and time?

### E=P*t.

17

## What is the equation that links energy transferred, charge flow and potential difference?

### E=Ω*V.

18

## What is the equation that links density, mass and volume?

### p=m÷v.

19

## What is the equation that links elastic potential energy 0.5 spring constant and extension?

### Ee=(1÷2)*k*(e*e).

20

## What is the equation that links efficiency, useful power output and total input energy transfer?

### Efficiency = useful output energy transfer÷total input energy transfer.

21