Changing Velocity

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It is a vector quantity, meaning it has both magnitude and direction.

Front

What is acceleration?

Back

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

Front

How do you calculate final velocity?

Back

Final velocity (v) can be calculated using the formula: v = u + at, where u is the initial velocity, a is acceleration, and t is 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 includes direction and is a vector quantity.

Front

What does a negative acceleration indicate?

Back

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

Front

How do you calculate average velocity?

Back

Average velocity can be calculated using the formula: Average velocity = (initial velocity + final velocity) / 2.

Front

What is the unit of acceleration?

Back

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

Front

If an object is at rest, what is its initial velocity?

Back

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

Front

What is the formula for calculating distance when acceleration is involved?

Back

Distance (s) can be calculated using the formula: s = ut + (1/2)at², where u is initial velocity, a is acceleration, and t is time.

Front

What does it mean for an object to have a constant velocity?

Back

An object has a constant velocity if it is moving at the same speed and in the same direction over time.