Checkpoint practice 2024 (part 3)

Front

What is kinetic energy?

Back

The energy related to the motion of an object.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

How does energy transform when a rock falls off a cliff?

Back

As the potential energy decreases, the kinetic energy increases.

Front

What is conduction?

Back

The transfer of thermal energy through direct contact between materials.

Front

What is an example of conduction in cooking?

Back

Thermal energy is transferred from the hot burner to the pan by contact.

Front

What does it mean for an object to be less dense than water?

Back

It means the object will float when placed in water.

Front

Which materials are less dense than water?

Back

Toothpick, cork, and vegetable oil.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy = 1/2 * mass * velocity^2.

Front

What happens to the kinetic energy of a bird flying at a constant speed?

Back

The kinetic energy remains constant as long as the mass and speed do not change.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy increases with an increase in mass if velocity is constant.