Physics Review - Kinematics

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It can be positive (speeding up) or negative (slowing down).

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the formula for calculating velocity?

Back

Velocity (v) is calculated using the formula: v = distance / time.

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.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.8 m/s².

Front

If an object is in free fall, what is its initial velocity?

Back

If an object is dropped from rest, its initial velocity is 0 m/s.

Front

What is the significance of negative acceleration?

Back

Negative acceleration indicates that an object is slowing down or decelerating.

Front

How do you find the final velocity of a free-falling object?

Back

The final velocity (v) can be found using the formula: v = initial velocity + (acceleration * time).

Front

What is the resultant velocity when two velocities are perpendicular?

Back

The resultant velocity can be found using the Pythagorean theorem: resultant velocity = √(v₁² + v₂²).

Front

What is the unit of acceleration?

Back

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