Physics First Semester Final 2024-2025 Practice Test

Front

What does Newton's third law state?

Back

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

Front

How do objects behave in a vacuum when falling?

Back

Objects fall at the same rate regardless of their mass.

Front

What is the formula for calculating power?

Back

Power (P) = Work (W) / Time (t) in watts.

Front

What does Newton's first law of motion state?

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

If a car does 12,000 joules of work in 30 seconds, what is its power output?

Back

400 W.

Front

What is the significance of the first law of motion in everyday life?

Back

It explains why it's harder to start moving a heavy object than to keep it moving.

Front

What is the horizontal distance traveled by an object thrown horizontally at 15 m/s for 2 seconds?

Back

30 m.

Front

What is inertia?

Back

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

Front

What is the relationship between force, mass, and acceleration according to Newton's second law?

Back

Force (F) = Mass (m) x Acceleration (a).

Front

What is gravitational acceleration near the Earth's surface?

Back

Approximately 9.81 m/s².