pt.2

Question 1

what is gravity?

Answer 1

force of attraction between any objects that have mass.

Question 2

what is heat?

Answer 2

when some thermal energy transfers from one object to another, it is called Heat.

[ hot hand transferring heat to a face, once placed on ]

Question 3

what is/are kinetic energy?

Answer 3

the movement of an object.

[ electrical, sound, thermal, mechanical. light ]

Question 4

what is/are potential energy?

Answer 4

An object that has stored energy, The potential to do work at a later time.

[ chemical energy, elastic energy, Gravitation energy ]

• bomb/food

Question 5

what is/are action at a distance force/forces?

Answer 5

forces that act on an object without touching it

[ gravity, magnetism and static electricity ]

Question 6

What is friction?

Answer 6

a contact force that pulls in the opposite direction to an objects movement when it connects/touches another object

(bike’s brakes slowing down a bike wheel)

Question 7

What can thermal energy be measured in?

Answer 7

Kelvin or celcius

Question 8

What is joules named after?

Answer 8

James prescott joule, an english physist. who used his experiments to find the measurement of joules.