Working for a living.
The product of force and distance.
What is work?
The quantity that measures the rate at which work is done.
What is power?
Has a fixed shape.
What is a solid?
Thermal expansion.
What is the expansion of substances due to increased heat?
Moves from areas with more to areas of less.
How does heat move?
A student uses 10 N of force to lift a box 2 M to do this much work.
What is 20 Joules?
Watt
What is the SI unit of power?
When a solid changes into a liquid.
What is melting?
Type of energy particles gain when heated.
What is kinetic energy?
Heat transfer caused by direct contact with the heat source.
What is conduction?
The energy of a moving object.
What is kinetic energy?
The formula for power.
What is Power = Work / time?
liquid turning into a gas at any temperature.
What is evaporation?
Total energy of all the particles fo a substance.
What is internal energy?
Substance that allows the flow of heat.
What is a conductor?
The energy an object has due to its position.
What is potential energy?
Measured in Kilogram
What is the SI unit for mass?
Evidence for the kinetic model based on the zig-zag motion of smoke particles.
What is Brownian Motion?
A measure of the average kinetic energy of individual particles.
What is temperature?
A substance that resists the flow of heat.
What is an insulator?
The force pulling an object towards the center of the Earth.
What is gravity?
A 74kg racer took 798s to climb 320 m.
What is 291.4 Watts of power?
Calculate work ( m*g*H)
W= 74kg * 9.81 m/s2 * 320 =232492.8 J
P= w/t. 232492.8/798 sec
P= 291.4 Watts
Have no fixed shape or volume.
What are gases?
The temperature at which a substance goes from a liquid to a gas.
What is a boiling point?
Travels in electromagnetic waves.
How does radiation move?