Physics

Question 1

Formula for PE (potential energy)

Answer 1

MxGxH (Mass x Gravity x Height)

Question 2

Formula for H (Height)

Answer 2

H=PE divided by mass x gravity

Question 3

Formula for M (Mass)

Answer 3

M=PE divided by gravity x height

Question 4

Gravity always equals what number?

Answer 4

9.8m/s2 (S squared)

Question 5

PE energy is measured in?

Answer 5

Joules

Question 6

What are the 2 things that make something have more potential energy?

Answer 6

More mass and more height

Question 7

Kinetic energy is…

Answer 7

Energy of motion

Question 8

Potential energy is…

Answer 8

Energy that is stored

Question 9

Mechanical energy is is under which energy category?

Answer 9

Kinetic

Question 10

Gravitational energy is under which energy category?

Answer 10

Potential

Question 11

Thermal energy is under which energy category?

Answer 11

Kinetic

Question 12

Radiant energy is under which energy category?

Answer 12

Kinetic

Question 13

Sound energy is under which energy category?

Answer 13

Kinetic

Question 14

Electrical energy is under which energy category?

Answer 14

Both Kinetic and Potential

Question 15

Nuclear energy is under which energy category?

Answer 15

Potential

Question 16

Elastic energy is under which energy category?

Answer 16

Potential

Question 17

Chemical energy is under which energy category?

Answer 17

Potential

Question 18

Magnetic energy is under which energy category?

Answer 18

Potential

Question 19

Define the law of conservation of energy

Answer 19

Cannot be created or destroyed only transformed or transferred

Question 20

Mass is measured in?

Answer 20

Kilograms

Question 21

Height is measured in?

Answer 21

Meters

Question 22

Velocity is measured in?

Answer 22

Meters per second

Question 23

Composition of Alpha Radiation, Beta Radiation, and Gamma Radiation:

Answer 23

Alpha particle, beta particle, and high energy radiation

Question 24

Charge for alpha radiation, beta, and gamma:

Answer 24

+2, -1, 0

Question 25

Penetrating power for alpha radiation, beta, and gamma

Answer 25

Blocked by paper, by metal foil, by concrete

Question 26

Particle emitted for alpha, beta, and gamma

Answer 26

Alpha, beta, and gamma

Question 27

Change in mass of alpha radiation, beta, and gamma

Answer 27

Down by 4, no change, and no change

Question 28

Change in atomic number for alpha radiation, beta, and gamma

Answer 28

Down by 2, up by 1, no change

Question 29

Define nuclear fission

Answer 29

Separation of a nucleus

Question 30

Define nuclear fusion

Answer 30

Joining of 2 nuclei into 1 more massive

Question 31

For the roller coaster question: how do you find the KE?

Answer 31

Total Energy minus PE

Question 32

True or false Total energy never changes

Answer 32

True

Question 33

For roller coaster question: how to find total energy is?

Answer 33

PE + KE

Question 34

Formula for KE is?

Answer 34

KE = 0.5 x M x V squared