Physic Paper 1

Question 1

What are the energy stores

Answer 1

Gravitational potential energy
Kinetic energy
Chemical energy
Thermal/internal energy
Elastic potential energy
Nuclear energy
Magnetic energy
Electrostatic energy

Question 2

What is kinetic energy

Answer 2

Movement of an object

Question 3

What is elastic potential energy

Answer 3

When an object is being stretched, compressed or squashed

Question 4

What us thermal energy

Answer 4

A sum of kinetic and potential energy

Question 5

What is chemical energy

Answer 5

Chemical bonds and atoms

Question 6

What is gravitational potential energy

Answer 6

Object that is raised above earth surface

Question 7

What is temperature in interal/thermal energy measure

Answer 7

Kinetic store on particle

Question 8

When body temperature increases

Answer 8

Kinetic energy increases
Thermal energy increases

Question 9

What is the kinetic energy calculation

Answer 9

Energy= 1/2 mass x velocity2

Question 10

What to remember in kenetic energy

Answer 10

Mass - kg
Velocity- m/s
Energy- j (joules)

Question 11

What is the gravitational potential calculation

Answer 11

Change in potential = mass x gravitational field strength x height

Question 12

What is the number on acceleration (graitvational potential)

Answer 12

9.8 netwons/kg

Question 13

What are the measurements in GPE calculation

Answer 13

Gravitational field strength - n/kg
Height - m
Mass - kg
Energy- j (joules)

Question 14

What is the calculation of elastic potential

Answer 14

Elastic potential = 1/2 spring constant x extention2

Question 15

What are the measurements of the calculation in elastic potential energy

Answer 15

Spring constant - n/m
Extension - m
Energy - joules

Question 16

Give an example of how energy storing is like

Answer 16

1 ans - like a bank account. Earn money by doing WORK. Spend money (energy) on what u need and save money (energy) when it is not needed. Transfer money (energy) to someone else you are buying it from

2 ans - energy is added to bodies chemical energy store when eating food. Or kinetic energy to move around. Body transfer thermal energy to keep us warm. Energy is stored until you need it.

Question 17

What is it meant by “useful energy”

Answer 17

Where Energy was supposed to go into

Question 18

What is it meant by “useless energy”

Answer 18

enegry that is wasted and does not go to its intended purpose

Question 19

what is another way of saying “wasted energy”

Answer 19

dissipated energy

Question 20

What is the major waste of energy

Answer 20

Friction

Question 21

what is thermal equilibrium

Answer 21

two objects that has an equal amount of heat transfer

Question 22

which kind of materials are conductors

Answer 22

copper
iron
aluminium
graphite
carbon
water

Question 23

when the material has a high thermal conductivity, the material ……………… ……………..

Answer 23

answer: heats up quickly

Question 23

which kind of materials are insulators

Answer 23

air
steel
glass
bronze
rubber

Question 24

In thermal conduction less energy is transferred when: (3 points)

-

Answer 24

-material is thicker
-material is an insulator
-the temperature difference is less than the orginal

Question 25

in conservation and dissipation, enegery is wasted due to : (3 points)

Answer 25

-heating
-light
-sound

Question 26

depending on the heat capacity- when the capacity is low….

Answer 26

it will heat up quickly

Question 27

what is the equation for heat capacity

Answer 27

Q=m x c(change) T