Review - Kinematics

Front

What is the definition of velocity?

Back

Velocity is the speed of an object in a specific direction.

Front

What is the SI unit of velocity?

Back

The SI unit of velocity is meters per second (m/s).

Front

What is the SI unit of acceleration?

Back

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

Front

Which of the following is an acceptable velocity measurement? 25 m/s North, 25 m/s, 25 m, 25 m North

Back

25 m/s North is an acceptable velocity measurement.

Front

What is the formula to calculate acceleration?

Back

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

Front

If an object is moving at a constant speed, what is its acceleration?

Back

If an object is moving at a constant speed, its acceleration is 0 m/s².

Front

What does it mean for an object to accelerate?

Back

To accelerate means to change its velocity, which can involve speeding up, slowing down, or changing direction.

Front

How do you calculate the time taken to cover a distance with uniform acceleration?

Back

Use the formula: time (t) = √(2 * distance / acceleration).

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 formula for calculating distance when acceleration is involved?

Back

Distance (d) can be calculated using the formula: d = initial velocity * time + 0.5 * acceleration * time².