Acceleration Basics

What is the formula to calculate acceleration?

• acceleration = final velocity / time

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

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

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

If an object's velocity changes from 5 m/s to 15 m/s in 3 seconds, what is its acceleration?

• 20 m/s^2

• 5 m/s^2

• 3.33 m/s^2

• 10 m/s^2

A car accelerates from 0 m/s to 20 m/s in 4 seconds. What is the acceleration of the car?

• 15 m/s^2

• 5 m/s^2

• 10 m/s^2

• 25 m/s^2

How is acceleration related to velocity and time?

• Acceleration is directly related to velocity and inversely related to time.

• Acceleration is directly proportional to velocity and time.

• Acceleration is inversely proportional to velocity and directly proportional to time.

• Acceleration is directly proportional to time and inversely proportional to velocity.

If an object has an acceleration of 2 m/s^2, how much will its velocity change in 5 seconds?

• 5 m/s

• 15 m/s

• 20 m/s

• 10 m/s

What are the units of acceleration?

• cm/s

• kg

• m

• km/h

• m/s^2

Calculate the acceleration of an object if its velocity changes from 10 m/s to 30 m/s in 5 seconds.

• 4 m/s^2

• 8 m/s^2

• 6 m/s^2

• 2 m/s^2

Explain the difference between positive and negative acceleration.

• Positive acceleration increases velocity, negative acceleration decreases velocity.

• Positive acceleration always leads to an increase in speed.

• Negative acceleration is the same as deceleration.

• Positive acceleration only occurs in one direction.

A train slows down from 30 m/s to 10 m/s in 6 seconds. What is its acceleration?

• -10 m/s^2

• 5 m/s^2

• 15 m/s^2

• -20 m/s^2

Why is acceleration a vector quantity?

• Acceleration is a constant value and does not change.

• Acceleration is a vector quantity due to its magnitude and direction.

• Acceleration is a scalar quantity because it has no direction.

• Acceleration is a unitless quantity.