Physics

Question 1

Kinetic Energy calculation

Answer 1

0.5 x Mass(kg) x Velocity (m/s2)

Question 2

Gravitational Potential energy calculation

Answer 2

Mass(kg) x Gravitational field strength(m/s2) x Height(m)

Question 3

The law of conservation of energy

Answer 3

Energy cannot be created or destroyed - it is just transferred from one store to another.

Question 4

Loss in gravitational energy - what happens

Answer 4

There is a gain in kinetic energy - the kinetic energy replaces the gravitational energy.

Question 5

Mass

Answer 5

the amount of matter in an object

Question 6

Velocity

Answer 6

the speed in a given direction ( a vector)

Question 7

gravitational field

Answer 7

the area around a large mass where the effects of gravity can be felt

Question 8

Chemical energy

Answer 8

Chemical energy is energy store in chemical bonds.

Question 9

Thermal energy

Answer 9

Thermal energy is the energy store in hot objects.

Question 10

magnetic energy

Answer 10

The energy store due to position of magnetic material in a fields.

Question 11

Electrostatic energy

Answer 11

the energy stored dur to the position of electric charges in a fields.

Question 12

Gravitational potential energy

Answer 12

the energy stored due to the position of a mass in a gravitational fields.

Question 13

Kinetic energy

Answer 13

kinetic energy is the energy stored in moving objects.

Question 14

elastic potential energy

Answer 14

the energy stored in stretching objects.

Question 15

vibrational energy

Answer 15

the energy stored in vibrating objects such as strings or atoms.

Question 16

nuclear energy

Answer 16

nuclear energy is the energy stored inside the nucleus of an atom, stored of nuclear energy include the fuel rods in a nuclear power station.

Question 17

Thermal equilibrium

Answer 17

when two objects are at the same temperature and there is no energy transfer between them.