Science Interim 1 District 2024

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. The faster an object moves, the more kinetic energy it has.

Front

What is density?

Back

Density is the mass of an object divided by its volume, usually expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

What is the relationship between force and motion?

Back

An unbalanced force acting on an object causes it to change its motion, which can include starting, stopping, or changing direction.

Front

What is Newton's third law of motion?

Back

Newton's third law states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, chemical potential energy is stored in the bonds of molecules.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What happens to the motion of an object when balanced forces act on it?

Back

When balanced forces act on an object, it remains at rest or continues to move at a constant speed in a straight line.

Front

What is the significance of measuring forces in experiments?

Back

Measuring forces helps us understand how objects interact and the effects of those interactions on motion.

Front

What is an example of energy transformation?

Back

When fossil fuels are burned in a power plant, chemical potential energy is transformed into thermal energy, which is then converted into electrical energy.

Front

How does temperature relate to kinetic energy?

Back

Temperature is a measure of the average kinetic energy of the molecules in a substance; higher temperatures indicate higher kinetic energy.