Unit 3A Review Challenge 12/12

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and remains constant regardless of location. Weight is the force exerted by gravity on that mass and can change depending on the gravitational field.

Front

What happens to the weight of an object when it is on the Moon compared to Earth?

Back

The weight of an object is less on the Moon than on Earth due to the Moon's weaker gravitational pull.

Front

Who discovered the Laws of Motion?

Back

Isaac Newton.

Front

What does Newton's second law state about force and acceleration?

Back

If you increase the force applied to an object, it accelerates more.

Front

What is inertia according to Newton's first law?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does mass affect weight?

Back

Weight is directly proportional to mass; more mass means more weight in a given gravitational field.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².

Front

What is the significance of Newton's third law?

Back

For every action, there is an equal and opposite reaction.

Front

How does a car continue to move after running out of gas?

Back

Due to inertia, the car continues to move until acted upon by another force.