Understanding Acceleration

What is the SI unit of acceleration?

• Newton

• Kilometer per hour

• Meter per second squared

• Meter per second

Which of the following is true for an object moving with constant velocity?

• Both speed and direction remain constant

• Its speed changes but direction remains constant

• Its speed remains constant but direction changes

• Both speed and direction change

What happens to velocity when only the direction of motion changes?

• Velocity remains constant

• Velocity changes

• Acceleration becomes zero

• Speed increases

In which scenario does acceleration remain constant while velocity increases?

• Velocity decreases from 10 to 0

• Velocity remains constant

• Velocity increases from 0 to 8

• Velocity decreases from 10 to 2

What is the acceleration when velocity decreases from 10 to 2 at a constant rate?

• Positive

• Zero

• Negative

• Undefined

If velocity decreases and acceleration is negative, what does this indicate?

• The object is speeding up

• The object is slowing down

• The object is at rest

• The object is moving in a circle

How does acceleration behave when velocity increases but at a decreasing rate?

• Acceleration increases

• Acceleration decreases

• Acceleration remains constant

• Acceleration becomes zero

What does a negative acceleration indicate?

• Acceleration is zero

• The object is moving in a positive direction

• The object is moving in a negative direction

• The object is at rest

When both velocity and acceleration decrease, what is happening to the object?

• The object is changing direction

• The object is speeding up

• The object is slowing down

• The object is moving at a constant speed

What is the relationship between velocity and acceleration when velocity is constant?

• Acceleration is zero

• Acceleration is positive

• Acceleration is negative

• Acceleration is undefined