Physics-Semester 1 Final Review

Front

What is the direction of acceleration when a ball is thrown up and falls back to earth?

Back

The acceleration is directed downward.

Front

What are the units for measuring acceleration?

Back

m/s²

Front

What is the standard acceleration due to gravity on Earth?

Back

10 m/s² (approximately 9.81 m/s²).

Front

What is inertia in the context of physics?

Back

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

Front

If a ping pong ball and a metal ball are dropped simultaneously in a vacuum, which one hits the ground first?

Back

They both hit at the same time.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v) - Initial Velocity (u)) / Time (t).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

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 unless acted upon by a net external force.

Front

What is the formula for gravitational force between two masses?

Back

F = G * (m1 * m2) / r², where G is the gravitational constant.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.