trajectory

Question 1

Energy
Equation for energy
symbol for energy
SI
closely related
Kettle power rating 2200 watts for 80sec what's energy
How many joules in kilojoules
fan power 20 watts 1 hour
iron used 5 mins 600,000 j what's power

Answer 1

1
E = IVT,     E = PT
E  genie
 joule
Mass
176 KJ
1000
72 KJ
2000w

Question 2

waves
what are two types of waves?
what do waves travel through?
Equation for wavespeed

Answer 2

2
transverse and longitudinal
a medium
Wave speed = frequency x wavelength

Question 3

density

Equation for density

Answer 3

3

mass/volume

Question 4

force
What is the measure of force
How can you measure the force of an object?
What is the force that causes planets and comets to orbit the sun?

Answer 4

star wars
Newtons
Spring balance or Newton balance.
Gravitational force (gravity but mark schemes normally prefer that)

Question 5

momentum
symbol
unit
is a 
equation for momentum?
Equation to show increase in momentum:

Answer 5

xtratherm
P Moon
Kilogram metres per second (kg m/s) 
vector 
Momentum = mass x velocity
Force x time = increase in momentum

Question 6

work

Answer 6

tip

Question 7

power

Answer 7

mam sink

Question 8

gravity
came up with
Causes the planets to orbit 
Causes comets to orbit 
Causes the moon and artificial satellites to orbit

Answer 8

gravy
Newton
Causes the planets to orbit the sun
Causes comets to orbit the sun
Causes the moon and artificial satellites to orbit the earth

Question 9

electricity

Answer 9

7

Question 10

Astronomy

spelling

Answer 10

ashtray

ron

Question 11

efficiency symbol

equation for efficiency

Answer 11

5 fish splashing

Question 12

light loc
What is the speed of light?
What happens when a ray of light enters an optically denser substance?
What happens when a ray of light leaves an optically denser substance?

Answer 12

4 flashing in eyes
300,000,000 m/s
It bends towards the normal /normal symbol plate

It bends away from the normal

Question 13

What is a plane mirror? loc

Answer 13

A flat mirror sky

Question 14

What is specular reflection? loc

All the incident ray is reflected

Answer 14

6

All the incident ray is reflected at the same angle

Question 15

What is diffuse reflection?

All the incident ray is reflected at

Answer 15

8 orange juice

All the incident ray is reflected at lots of different angles

Question 16

What is the angle of incidence equal to?

Answer 16

9 cricket bat

The angle of reflection

Question 17

reflected image loc
Objects are the
The image is

Answer 17

mirror
same size
virtual

Same distance away from the mirror
Laterally inverted - left and right sides are swapped.

Question 18

What is refraction?
The bending of
Will a refracted ray ever bend beyond the normal?

Answer 18

10 my hat
a light ray
No (so there is no bending when a ray crosses a boundary at a right angle)

Question 19

Will a refracted ray ever bend beyond the normal?

Answer 19

No (so there is no bending when a ray crosses a boundary at a right angle)

Question 20

If the two boundaries of the substance are parallel what will the rays be? loc

Answer 20

parallel

subs bench

Question 21

What is Snell’s Law? loc

Answer 21

11

Question 22

What is total internal reflection used in? loc

Answer 22

13

Prisms in periscopes, binoculars and bicycle reflectors, optic fibres

Question 23

virtual image?

Answer 23

14

Question 24

When does total internal reflection happen?

Answer 24

When you go from a more optically dense object to a less optically dense object

Question 25

magnifying lens

Answer 25

15

Question 26

luminous

Answer 26

16

Question 27

non-luminous

Answer 27

17

Question 28

critical angle

Answer 28

cricket pitch

Question 29

elastic collision

Answer 29

18

Question 30

inelastic collision?

Answer 30

19

Question 31

collision?

Answer 31

train

Question 32

newton's first law called loc

Answer 32

inertia 20

Question 33

Isaac newton Born resting place

Answer 33

21 Woolsthorpe-by-Colsterworth, Westminster Abbey

Question 34

frictional is a does what to motion What is the frictional force proportional to?

Answer 34

fiction force opposes motion. The force pressing the surfaces together.

Question 35

spring loc What is the elastic limit of a spring? spring elastic?

Answer 35

22 Where is no longer stretches uniformly and no longer obeys hookes law. yes

Question 36

wire?

Answer 36

23

Question 37

elastic band? | What happens as you continue to add force to an elastic band?

Answer 37

24 | It becomes more difficult to stretch

Question 38

Hooke's law regards forumla

Answer 38

25 spring F=kx

Question 39

elastic behaviour? | what is it

Answer 39

26 | recover its original shape after the forces have been removed

Question 40

rubber band | Is a rubber band elastic?

Answer 40

27 | no

Question 41

Metal wire | Is a metal wire elastic?

Answer 41

28 | yes

Question 42

planet

Answer 42

football gpost

Question 43

milky way

Answer 43

shop

Question 44

Asteroid belt | Where is the asteroid belt in our solar system?

Answer 44

convey extra belt | In between mars and saturn

Question 45

comets? type of orbit when travel fastest Where do the tails of comets always point

Answer 45

bus stop elliptical orbits When they are closest to the sun away from the sun

Question 46

Earth | What is our solar system a part of?

Answer 46

cap | The milky way galaxy

Question 47

Weight | What is the equation for weight?

Answer 47

weights gym | mass x gravitational field strength

Question 48

galaxy? | What is a galaxy?

Answer 48

29 | A large collection of billions of stars

Question 49

universe? | What is the universe?

Answer 49

30 | A large collection of billions of galaxies

Question 50

moon What is the gravitational field strength on the moon? takes to orbit the earth

Answer 50

cow 1.6 N/kg Orbits the earth with a period of about 28 days

Question 51

Jupiter

Answer 51

Pit