What Vocab Word is it?
The transfer of thermal energy by collisions between particles in matter.
Conductions
A couch is pushed with a horizontal force of 80 N and moves a distance of 5 m across the floor. How much work is done in moving the couch?
400 J
This type of energy increases when a roller coaster is at the top of a hill, not yet moving.
Gravitational Potential Energy / Potential Energy
The mechanism of an elevator relies heavily on this simple machine to lift and lower the car.
A Pulley
When you place a metal spoon in a hot cup of tea, this type of energy transfer occurs from the hot liquid to the spoon.
Conduction
The sum of the kinetic energy and the potential energy of all the particles that make up an object.
Thermal Energy
You Serve a Volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the energy.
945 J
This type of energy is released during the digestion of food.
This simple machine is the key part of a fishing reel, making it easier to wind in the line.
Wheel and Axle
This type of heat transfer causes warm air to rise and cool air to sink, forming wind patterns.
Convection
The rate at which energy is converted.
Power
A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N. Calculate the energy.
2469.6 J
The sun produces this type of energy, which is crucial for photosynthesis in plants.
Light Energy
The main mechanism in a nutcracker uses this simple machine to crack open nuts with minimal effort.
On a hot day, the air inside a car becomes much warmer than the outside air due to this type of energy transfer through the car's windows.
Radiation
The ability to do work.
Energy
The air in a room has a mass of 50 kg and a specific heat of 1000 J/(kg*ºC). What is the change in thermal energy of the air when it warms from 20ºC to 30ºC?
500,000 J
This type of energy is higher in a boiling pot of water than in a room-temperature glass of water due to faster particle movement.
Thermal Energy
This simple machine is the main mechanism in a can opener, which uses it to cut open metal cans.
A Wedge
When you rub your hands together on a cold day, friction converts this type of energy into thermal energy, warming your hands.
Kinetic Energy
The ratio of the output force exerted by a machine to the input force.
Mechanical Advantage
The temperature of a 2.0 kg block increases by 5ºC when 2000J of thermal energy are added to the block. What is the specific heat of the block?
200 J/(kg*ºC)
A moving car has this type of energy because it combines both its motion and its position above the ground.
Mechanical Energy
A hand drill uses this simple machine to bore holes into surfaces, translating rotational movement into cutting power.
A Screw
Solar panels convert sunlight into electrical energy, which can be used to power homes. This initial form of energy from the sun is a type of this energy.
Radiant Energy