Average Acceleration Quiz

What is the equation for average acceleration?

• average acceleration = (final velocity + initial velocity) / time

• average acceleration = (final velocity * initial velocity) / time

• average acceleration = (final velocity - initial velocity) * time

• average acceleration = (final velocity - initial velocity) / time

How can you calculate average acceleration from a velocity-time graph?

• Average acceleration can be calculated by taking the average of the initial and final velocities.

• Average acceleration can be calculated by dividing the change in velocity by the change in time.

• Average acceleration can be calculated by finding the slope of the line connecting two points on the velocity-time graph.

• Average acceleration can be calculated by finding the area under the velocity-time graph.

What is the difference between average acceleration and instantaneous acceleration?

• Average acceleration is the derivative of velocity, while instantaneous acceleration is the derivative of displacement.

• Average acceleration is always positive, while instantaneous acceleration can be positive or negative.

• Average acceleration is calculated over a time interval, while instantaneous acceleration is calculated at a specific moment in time.

• Average acceleration is constant, while instantaneous acceleration can vary over time.

Can you provide an example of average acceleration?

• 4 m/s^2

• 2 m/s^2

• 10 m/s^2

• 0.5 m/s^2

A car starts from rest and reaches a velocity of 20 m/s in 10 seconds. What is the average acceleration of the car?

• 10 m/s^2

• 15 m/s^2

• 2 m/s^2

• 5 m/s^2

A ball is thrown upwards with an initial velocity of 15 m/s. It reaches its highest point and then falls back down. What is the average acceleration of the ball during its entire motion?

• 12.5 m/s²

• 10 m/s²

• 3.5 m/s²

• 7.5 m/s²

A cyclist accelerates from 5 m/s to 15 m/s in 4 seconds. What is the average acceleration of the cyclist?

• 2.5 m/s^2

• 4.5 m/s^2

• 1.5 m/s^2

• 3.5 m/s^2

A train slows down from 30 m/s to 10 m/s in 5 seconds. What is the average acceleration of the train?

• 8 m/s^2

• 4 m/s^2

• 6 m/s^2

• 2 m/s^2

A rocket accelerates from 0 m/s to 100 m/s in 2 seconds. What is the average acceleration of the rocket?

• 50 m/s^2

• 100 m/s^2

• 75 m/s^2

• 25 m/s^2

A runner sprints at a constant velocity of 8 m/s for 20 seconds. What is the average acceleration of the runner?

• 0

• 16 m/s^2

• 10 m/s^2

• 4 m/s^2