Definitions

Question 1

Hookes Law

Answer 1

Extension of a stretched object is proportional to the load or force

Question 2

Elastic deformation

Answer 2

Material returns to its original shape and size once the force is removed

Question 3

Plastic deformation

Answer 3

Material is permanently stretched

Question 4

One coulomb

Answer 4

Amount of charge that passes in 1 second if the current is 1 ampere

Question 5

Volt

Answer 5

Potential difference across a component is 1 volt when you convert 1 joule of energy moving 1 coulomb of charge through the component

Question 6

Ohms Law

Answer 6

Provided the physical conditions such as temperature remains constant the current through the ohmic conductor is directly proportional to the potential difference across it

Question 7

Power

Answer 7

Rate of energy transfer

Question 8

Kirchoffs first Law

Answer 8

Algebraic sum of currents at a junction is zero

Question 9

Kirchoffs second Law

Answer 9

Around any closed loop in a circuit the sum of the emfs is equal to the sum of pds

Question 10

Coherent

Answer 10

If have same wavelength and frequency and a fixed phase difference between them

Question 11

Stationary waves

Answer 11

Superposition of two progressive waves with the same frequency moving in opposite directions