Electricity Formulas?

Question 1

Kinetic Energy?

Answer 1

1/2 x Mass x Velocity (Squared).

Question 2

Gravitational Potential Energy?

Answer 2

Mass X Gravitational Field Strength x Change In Height.

Question 3

Work Done?

Answer 3

Force x Distance Moved In Direction.

Question 4

Power?

Answer 4

Work Done
——————
Time Taken.

Question 5

Moment Of A Force?

Answer 5

Force x Distance Normal To The Direction Of Force.

Question 6

Charge?

Answer 6

Current x Time.

Question 7

Energy Transferred?

Answer 7

Charge X Voltage.

Question 8

Potential Difference?

Answer 8

Current x Resistance.

Question 9

Power?

Answer 9

Energy Transferred
—————————
Time Taken.

Question 10

Electrical Power?

Answer 10

Current x Voltage

Or

Current (Squared) x Resistance.

Question 11

Density?

Answer 11

Mass
———
Volume.

Question 12

Force Exerted On A Spring?

Answer 12

Spring Constant x Extension.

Question 13

Pressure?

Answer 13

Force Normal To Surface
————————————
Area Of Surface.

Question 14

Energy Transferred In An Electrical Component?

Answer 14

Current x Voltage X Time.

Question 15

Size Of Force In Magnetic Field?

Answer 15

Magnetic Flux Density x Current x Length.

Question 16

Transformers Power?

Answer 16

Vp x Ip = Vs x Is,

Pd across primary x current across primary

=

Pd across secondary coil x current across secondary.

Question 17

Thermal Energy?

Answer 17

Mass x Specific Latent Heat.

Question 18

Change In Thermal Energy?

Answer 18

Mass x Specific Heat Capacity x Temperature Change.