Physics

Question 1

Sin 30

Answer 1

1/2

Question 2

Cos30

Answer 2

Root3/2

Question 3

Sin45

Answer 3

Root2/2

Question 4

What initiates nuclear fusion/fission

Answer 4

Fission : neutrons shot at unstable atoms

Fusion : relies on high KE and temp

Question 5

Nuclear fusion

Answer 5

Fusion of hydrogen atoms to form helium atoms

Question 6

Nuclear Fission

Answer 6

Nucleus splits

Question 7

Ohms law

Answer 7

Current through conductor between two points is directly proportional to voltage and inversey proportional to resistance

Question 8

Kirschoff’s 1st Law

Answer 8

Current in = current out

Question 9

Kirschoff’s second law

Answer 9

sum of all voltages around any closed loop in a circuit must equal zero

Question 10

Current

Answer 10

Rate of flow of charge

Question 11

Transformer equation

Answer 11

V1/V2=N1/N2

Question 12

Transformer equation

Answer 12

V1/V2=N1/N2

Question 13

Maximum potential energy in spring

Answer 13

Both at bottom + top

Max displacement on simple harmonic motion

Question 14

Ac generator voltage output factors

Answer 14

No of turns
Speed of rotation
Strength of magnet
Adding soft iron core

Question 15

How AC Generator works

Answer 15

Voltage induced by conducting wire cutting field lines thus current