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# Physics

Helmer Homenick

Lvl 9
2021-10-07 18:34:26
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Cards in this guide (23)
What does absolute zero mean

the lowest temperature that is theoretically possible, at which the motion of particles that constitutes heat would be minimal. It is zero on the Kelvin scale, equivalent to -273.15°C or -459.67°F.

What is thermal equilibrium

Thermal equilibrium is when the temperature of a system or organism is equal to the temperature of its surroundings. It is part of the zeroth law of thermodynamics. The zeroth law is" if 2 things are at the same temperature, no heat will flow between them. If they are next to each other, they will be in thermal equilibrium. This means things at the same temperature are the same temperature. For example, if hot tea is in a room where it is cold, the tea will also become cold. If the tea is the same temperature as the room then they will stay the same temperature.

A 12.0 rock slides off the edge of a bridge and falls into the water 25.0 meters below what is the kinetic energy as it hits the water

2,940

What term describes a measure of the average kinetic energy of the particles in matter

temperature

How is the energy of the sun transferred through the void of space

What is the term for the vertical circular movements of fluids that transfer energy due to changes in density

Convection currents are vertical circular movements of fluids that transfer energy due to changes in density.

Which factor most influences the amount of energy needed to change the temperature of a substance

specific heat capacity

What term is used to describe how well various substances conduct thermal energy

thermal conductivity The term for how substances conduct thermal energy is thermal conductivity.

What causes the sensation of cold when you touch an ice cube

loss of thermal energy from your finger

What term describes how much energy it takes to change the temperature of a substance

specific heat capacity

What changes when the amount of a substance changes

total thermal energy

How is energy transferred within the earths atmosphere and throughout the oceans

by convection

Which is an example of conduction

An example of conduction is a the heating of a pan on top of an electric stove.

The potential energy of a 50 newton object resting on the edge of a cliff 30 meters high is

1500 joules

If the temperature is 65 degrees Fahrenheit outside what is the temperature in degrees Celsius

65 degrees Fahrenheit = 18.3 degrees Celsius.

Which property of a substance does not change when the amount of the substance changes

temperature

What is the best way to describe wavelength

the distance a wave travels in a given amount

Which term defines something that does not transfer thermal thermal energy efficiently

insulator

How do thermometers with thermometers with liquid in glass measure temperature

Such thermometers are based on the fact that the liquid expands when the temperature increases. That's what the thermometers measure.

What is calorie in chemistry

A calorie is the necessary heat to raise the temperature of 1 g water with 1 oC.

If two transverse waves have the same wavelength the wave with the has the greatest wave speed.

If two transverse waves have the same wavelength, the wave with the __________ has the greatest wave speed.

Which of these would increase the temperature of a substance

increasing energy

what is the SI unit temperature

Kelvin

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