Mechanical energy Conservation of Energy

When is kinetic energy at its maximum on a roller coaster?

• At the highest point of the roller coaster

• At the lowest point of the roller coaster, where the speed is highest

• When the roller coaster is stationary

• At the midpoint of the roller coaster

What is the formula for calculating potential energy?

• PE = mv^2

• PE = mgh

• PE = 1/2 mv^2

• PE = mg^2h

What is an example of kinetic energy in everyday life?

• A stationary bicycle

• A moving car

• A parked airplane

• A sleeping dog

What is the relationship between potential energy and height?

• Potential energy decreases with height; the higher an object is, the less potential energy it has.

• Potential energy remains constant regardless of height.

• Potential energy increases with height; the higher an object is, the more potential energy it has.

• Potential energy is unrelated to height.

What is the formula for calculating kinetic energy?

• KE = mv

• KE = 1/2 mv

• KE = 1/2 mv²

• KE = mv²

What is energy transformation?

• The process of changing energy from one form to another, such as converting wind energy into electrical energy.

• A method of storing energy for future use.

• The ability to create energy from nothing.

• A technique used to measure energy consumption.

What happens to energy in a pendulum as it swings?

• The energy is lost as heat due to friction.

• Potential energy is converted to kinetic energy and vice versa, but the total mechanical energy remains constant.

• The pendulum gains energy from the surrounding air.

• The total energy increases as the pendulum swings.

What type of energy is associated with motion?

• Potential energy

• Kinetic energy

• Thermal energy

• Chemical energy

What type of energy is associated with the position of an object?

• Kinetic energy

• Thermal energy

• Potential energy

• Chemical energy

What is an example of energy conservation?

• Turning off lights when not in use.

• Using more electricity during peak hours.

• Leaving appliances on when not in use.

• Increasing the thermostat setting in winter.