Work, energy, and power

Question 1

Work (definition)

Answer 1

The product of force exerted on an object and the distance the object moves (in the same direction as the force)

Question 2

Electrical energy (formula)

Answer 2

P= energy transferred/time or (E/t)

Question 3

Energy (definition)

Answer 3

The ability or capacity to do work

Question 4

Power (definition)

Answer 4

Measure of how fast work is done

Question 5

Gravitational potential energy (formula)

Answer 5

GPE= mgh

Question 6

Gravitational potential energy (Ug) (definition)

Answer 6

Stored energy an object has as a result of its position above Earth’s surface (or any other object in space)

Question 7

Work (formula)

Answer 7

Work= force x distance

Question 8

Work (units)

Answer 8

Joule (J) or (N-m)

Question 9

Power (formula)

Answer 9

P= work done/time

Question 10

Kinetic energy (definition)

Answer 10

The energy of a moving body

Question 11

Kinetic energy (formula)

Answer 11

KE= 1/2mv^2

Question 12

Thermal energy/internal energy (definition)

Answer 12

Sum of mechanical energies of molecules

Question 13

Energy (formula)

Answer 13

E= KE + PE + Ethermal + Echem + ….

Question 14

Potential Energy (definition)

Answer 14

Stored energy due to position, shape, or state

Question 15

Energy (quantity)

Answer 15

Every system in nature has a quantity we call its total energy (E)