Flashcards in Dynamics Deck (18):

1

## the equation for average speed?

### d= v- t

2

## the equation for instantaneous speed?

### d=vt

3

## the equation for acceleration?

### a= v-u/t

4

## name vectors

###
displacement

velocity

acceleration

forces

weight

momentum

5

## name scalars

###
distance

time

speed

energy

mass

temperature

6

## what does a scalar require?

### only size

7

## what does a vector require?

### size and a direction

8

## what is newtons 1st law?

### an object will remain at rest or continue to move at a constant speed IF the forces acting on the object are balanced.

9

## what is newtons 2nd law?

###
F= ma

W= mg

10

## what is newtons 3rd law?

### every force has an equal and opposite reaction force

11

## can forces be push or pull?

### yes, they can be both

12

## equation for horizontal speed?

### d= vt

13

## equation for vertical speed?

### a= v-u / t

14

## state the 9 types of energy

###
gravitational potential

sound

heat

atomic/nuclear

chemical

kinetic

light

electrical

strain

15

## what's the conservation of energy?

### energy can not be created or destroyed only converted from one to another.

16

## equation for kinetic energy

### Ek= 1/2m X v2

17

## equation for gravitational potential energy

### Ep= mgh

18