A

Question 1

Measured-accepted/accepted x100

Answer 1

Percent error

Question 2

d=Vot + 1/2 x a x t^2

Answer 2

Object shot off a cliff

Question 3

Strong force

Answer 3

Holds nucleus together

Question 4

Weak force

Answer 4

Breaking down neutron into a proton or electron

Question 5

fg= m x g

Answer 5

Weight (N)

Question 6

Mass

Answer 6

Amount if material in an object (kg)

Question 7

a= gxh/d

Answer 7

Acceleration down a ramp

Question 8

X2=X1 x (y1/y2)^2

Answer 8

Force of attraction or gravitational field strength

Y= locations X= grav field/force of attraction of location

Question 9

Fg= GMm/d^2

Answer 9

Grav field strength (bottom must be in metres) (M is one location m is the other)

Question 10

M= ff/fn

Answer 10

Force of friction (bottom is weight in KG and the top is the amount of force in N)

Question 11

F=kx

Answer 11

HOOKES LAW (elastic forces) k is spring constant and x is distance stretched IN METERS

Question 12

What else can represent spring constant

Answer 12

Rise over run on a graph

Question 13

What is newtons 1st law

Answer 13

Inertia

Question 14

What is newtons second law

Answer 14

F=ma

Question 15

What is newtons 3rd law

Answer 15

Action reaction

Question 16

P=mv

Answer 16

Momentum (measured in kg m/s)

Question 17

~p= ~mc

Answer 17

Change in momentum

~p= m2v2 - m1v1

Question 18

F x ~t = m2v2 - m1v1

Answer 18

Change in momentum ( therefore impulse is equal to change in momentum)

Question 19

M1v1* - m1v1 + m2v2* - m2v2 = 0

Answer 19

Classic railway car problem

Question 20

W=fd

Answer 20

Work (measured in joules)

Question 21

What is joules

Answer 21

Newtons per meter

Question 22

P=w/~t

Answer 22

Power

Question 23

W=~E

Answer 23

Energy (therefore change or transfer if energy would he ~E=mcx~t)

Question 24

Rutherford

Answer 24

Nucleus and proton

Question 25

Chadwick

Answer 25

Neutron

Question 26

Soddy

Answer 26

Isotopes

Question 27

Becquerel

Answer 27

Radioactivity

Question 28

Thompson

Answer 28

Electron

Question 29

SLAC

Answer 29

Quark

Question 30

Cern

Answer 30

European counsil of nuclear research

Question 31

Standard atomic notation

Answer 31

M/A E

Question 32

3.6x10^8J

Answer 32

1kwh

Question 33

1000W

Answer 33

1kwh

Question 34

Gravitational potential energy

Answer 34

~Ep=mg~h (for change from poin A to B) or ep= mgh for one point

Question 35

Ek=1/2mv^2

Answer 35

Kinetic energy

Question 36

Efficiency

Answer 36

Useful energy output/energy input x100

Question 37

Heat energy

Answer 37

Energy that is transferred

Question 38

Critical mass

Answer 38

Amount of fissionable material necessary to produce a self sustaining chain reaction

Question 39

What are some moderators

Answer 39

Wayer graphite beryllium

Question 40

What happened in the squash court

Answer 40

Fermi created the first self sustaining controlled nuclear reaction

Question 41

Relativity

Answer 41

Times and places when events occur as observed from different points of view

Question 42

What are the two pronciples of relativity

Answer 42

There is no preffered reference frame and the principle of the consistancy of the speed of light

Question 43

Michelson Morley experiment?

Answer 43

* wanted to find the either | * found that the speed of light wad constant

Question 44

Speed of light can be determined using

Answer 44

V=d/t

Question 45

Who suggested that time is relative

Answer 45

Einstein

Question 46

Moving clocks run

Answer 46

Slower

Question 47

p=MoV/[1-v^2/c^2

Answer 47

Relativistic momentum (not on formula sheet) Mo is rest mass.

Question 48

In the "u" relativistic velocity, what are u, u*, and V

Answer 48

``` U= velocity of second ship wtrt fixed observer U*= velocity if 2nd ship wrr first ship V= velocity of the first ship wrt fixed observer ```

Question 49

In allof the special relativity formulas, what is the left side of the equasion representing

Answer 49

The meaurement as measured bu the fixed reference frame

Question 50

Frequency

Answer 50

1/T (cycles per second)

Question 51

Speed of a wave in 2 dif medias

Answer 51

V1/v2 = x1/x2

Question 52

Crest is the ____ and the trough is the ____

Answer 52

Top bottom

Question 53

Pinhole camera

Answer 53

Hi/Ho=Di/Do

Question 54

Gravitational potential energy

Answer 54

Ep=mgh