Acceleration Basics

What is the main difference between acceleration and velocity?

• Velocity is the first derivative of position with respect to time, while acceleration is the second derivative of position with respect to time.

• Velocity is a scalar quantity, while acceleration is a vector quantity.

• Velocity is constant, while acceleration changes over time.

• Velocity is measured in meters per second, while acceleration is measured in meters per second squared.

How is acceleration defined in a straight line?

• Acceleration in a straight line is defined as the rate of change of velocity with respect to time.

• Acceleration in a straight line is defined as the force acting on an object

• Acceleration in a straight line is defined as the distance traveled divided by time

• Acceleration in a straight line is defined as the speed of an object

What are the units of acceleration?

• kg

• m

• km/h

• m/s^2

• cm/s

What is the formula to calculate acceleration?

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

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

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

• acceleration = final velocity / time

If an object is moving in a straight line and its velocity is increasing, what can we say about its acceleration?

• The object is at rest

• The object is decelerating

• The object is moving in a circular path

• The object is experiencing acceleration.

Explain the concept of negative acceleration.

• Negative acceleration is when an object's velocity decreases over time, indicating a slowing down of the object.

• Negative acceleration is when an object's velocity increases over time.

• Negative acceleration is when an object's velocity remains constant over time.

• Negative acceleration is when an object's velocity becomes negative.

How can acceleration be represented graphically?

• By plotting velocity against time or by plotting acceleration against time.

• By plotting force against time

• By plotting distance against time

• By plotting speed against time

What is the SI unit of acceleration?

• km/h^2

• cm/s^2

• m/s^2

• m/s

What is the acceleration of an object if its velocity changes from 5 m/s to 10 m/s in 2 seconds?

• 7.5 m/s^2

• 3.5 m/s^2

• 2 m/s^2

• 5 m/s^2

How does acceleration affect the motion of an object?

• Acceleration always causes the object to stop moving

• Acceleration only affects the color of the object

• Acceleration has no effect on the motion of an object

• Acceleration changes the velocity of an object by increasing or decreasing its speed or changing its direction.