Forces, Energy, and Work Exploration

What is a force?

• A force is a measurement of speed.

• A force is a type of energy.

• A force is a fixed quantity that cannot change.

• A force is an interaction that causes a change in motion.

Name one type of contact force.

• Magnetism

• Tension

• Gravity

• Friction

What is gravity?

• Gravity is the temperature of an object in space.

• Gravity is the speed at which objects fall.

• Gravity is the force that attracts two bodies with mass towards each other.

• Gravity is a type of energy that powers machines.

What is potential energy?

• Potential energy is the energy of motion.

• Potential energy is the energy stored in an object due to its position or configuration.

• Potential energy is the energy associated with heat transfer.

• Potential energy is the energy released during a chemical reaction.

What is kinetic energy?

• Kinetic energy is the energy of an object in motion.

• Kinetic energy is the energy stored in an object at rest.

• Kinetic energy is the energy released during a chemical reaction.

• Kinetic energy is the energy of an object due to its temperature.

What is the formula for work?

• W = F / d

• W = F - d

• W = F × d × cos(θ)

• W = F + d

How is work calculated?

• Work = Mass × Acceleration

• Work = Force + Distance

• Work = Force × Distance × cos(θ)

• Work = Energy × Time

What is mechanical energy?

• Mechanical energy is the energy stored in chemical bonds.

• Mechanical energy is only kinetic energy.

• Mechanical energy is the energy of motion only.

• Mechanical energy is the sum of potential and kinetic energy in a system.

What is thermal energy?

• Thermal energy is the total kinetic energy of particles in a substance.

• Thermal energy is the energy stored in chemical bonds.

• Thermal energy is the energy produced by electrical currents.

• Thermal energy is the energy associated with gravitational forces.

What is the difference between renewable and non-renewable energy?

• Renewable energy is sustainable and replenishable, while non-renewable energy is finite and can be exhausted.

• Renewable energy can only be used in specific locations.

• Non-renewable energy sources are always cleaner than renewable sources.

• Renewable energy is more expensive than non-renewable energy.