Practice: Newton's Laws & Gravity 2024

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

What is the definition of gravity?

Back

Gravity is the force that attracts two bodies toward each other, depending on their masses and the distance between them.

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.8 m/sec².

Front

What is inertia?

Back

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

Front

What happens to an object in free fall?

Back

An object in free fall experiences only the force of gravity and accelerates downward at 9.8 m/sec² on Earth.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through air.

Front

How does mass affect gravitational attraction?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

What is the effect of gravity on the motion of planets?

Back

Gravity keeps planets in orbit around the sun by pulling them toward it.