energy

Question 1

Work done

Answer 1

Work done = forcedistance
W = Fx

Question 2

what is energy measured in

Answer 2

Joules, J

Question 3

Weight

Answer 3

Weight= massgravity
W= mg

Question 4

Gravitational potential energy

Answer 4

Gravitational potential energy=
massgravityheight
Gravitational potential energy=mgh

Question 5

Kinetic energy

Answer 5

Kinetic energy:
0.5massvelocity2
Kinetic energy: o.5mv2

Question 6

work against friction

Answer 6

Friction heats the object up
Friction is goinf work on the box
You are doing work against friction`

Question 7

Power

Answer 7

Watts
P=W/t
P= I*V

Question 8

If i carry a block at a constant speed is there work done?

Answer 8

No
Only if there a change in speed or height

Question 9

First law of energy

Answer 9

Energy cannot be destoryed or created only transferred from one object to another

Question 10

Hooks Law

Answer 10

F=kx
Force=string constant+extension

Question 11

Elastic Potential energy

Answer 11

1/2kx2

Question 12

Total Mechanic Energy

Answer 12

Kinetic energy + Gravitational potential energy

Question 13

Power is…

Answer 13

Power is the rate inwhich work is done

Question 14

Potential energy is..

Answer 14

Potential energy is energy that is stored as a result of position or shape