Work and Machines
Describing Energy
Conservation of Energy
Temperature
Thermal Energy and Heat
Conduction, Convection, and Radiation
Using Energy
100

What is the formula for calculating work?

What is W=F*D (where W is work, F is force, and d is distance)

100

What does the Law of Conservation of Energy state?

What is energy cannot be created or destroyed, only transformed?

100

What does the Law of Conservation of Energy State?

What is energy cannot be created or destroyed, only transformed?

100

What does temperature measure?

What is the average kinetic energy of particles in a substance?

100

What is thermal energy?

What is the total kinetic energy of all particles in a substance?

100

What is conduction?

What is the transfer of heat through direct contact?

100

Name a renewable source of energy.

What is solar energy?

What is wind energy?

What is hydroelectric energy?

200

Name a simple machine that can change the direction of a force.

What is a pulley?

200

Who is known for defining potential and kinetic energy?

 Who is Sir Isaac Newton?

200

Give an example of energy conservation in a roller coaster.

What is potential energy converting to kinetic energy as the coaster descends?

200

What is the freezing point of water in Celsius?

What is 0 degrees Celsius?

200

What is heat?

What is the transfer of thermal energy from one object to another?

200

What is convection?

What is the transfer of heat through the movement of fluids?

200

How can we reduce energy consumption at home?

What is using energy-efficient appliances?

What is turning off lights?

What is turning off water?

300

How do machines help us do work more efficiently?

Machines reduce the amount of force needed or change the direction of the force.

300

What type of energy is stored in an object due to its position?

: What is potential energy?

300

How does energy conservation apply to a closed system?

What is in a closed system, the total energy remains constant.

300

What tool do we use to measure temperture?

What is a thermometer?

300

What is the difference between thermal energy and temperature?

Thermal energy is the total amount of energy, while temperature measures the average energy of particles

300

Give an example of conduction in everyday life. 

What is touching a hot stove?

300

Why is it important to use energy wisely?

What is to conserve resources and protect the environment?

400

What is mechanical advantage??

Answer: What is the ratio of output force to input force in a machine

400

What is the energy of an object due to its motion called?

 What is kinetic energy?

400

Why is energy conservation important for the environment?

What is conserving energy helps reduce waste and pollution?

400

How does temperature relate to thermal energy?

Higher temperature means higher average kinetic energy and more thermal energy.

400

How does heat transfer?

What are conduction, convection and radiation?

400

What is radiation?

What is the transfer of energy through electromagnetic waves?

400

What is an example of energy transformation in a light bulb?

What is electrical energy converting to light and thermal energy?

500

Describe the difference between input work and output work. Define efficiency?

Input work is the work done on a machine, while output work is the work done by the machine.

500

What are the three types of potential energy?

 What is elastic potential energy, chemical potential energy, and gravitational potential energy

500

Describe how energy is conserved in a pendulum.

The pendulum converts potential energy to kinetic energy and back as it swings.

500

Explain how thermal expansion works.

What is when materials expand as they heat up due to increased particle movement?

500

Describe how thermal energy affects states of matter.

Increased thermal energy can change a substance from solid to liquid to gas.

500

How do convection currents work in the atmosphere?

Warm air rises, cool air sinks, creating a cycle that distributes heat.

500

Describe the concept of energy efficiency.

What is using less energy to provide the same service or output?