Practice for Physics Final 2024

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object changes its speed or direction.

Front

Why does a car accelerate when going around a corner at constant speed?

Back

The car accelerates because it is changing direction, which is a change in velocity.

Front

What happens to objects of different masses when dropped from rest in a vacuum?

Back

They will fall with equal accelerations and with equal displacements.

Front

How do you calculate the time it takes for a train to pass a point?

Back

Use the formula: time = distance / average speed.

Front

What is the formula for acceleration?

Back

Acceleration (a) = (final velocity (v_f) - initial velocity (v_i)) / time (t).

Front

If a roller coaster accelerates from 6.0 m/s to 70 m/s in 4 seconds, what is the acceleration?

Back

The acceleration is 16 m/s².

Front

How do you calculate distance covered during acceleration?

Back

Use the formula: distance = initial velocity * time + 0.5 * acceleration * time².

Front

What is the relationship between speed, distance, and time?

Back

Speed = Distance / Time.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.