Physics Quiz

A car of mass 1000 kg is moving with a velocity of 20 m/s. What is its kinetic energy?

What does a negative acceleration indicate?

• Decreasing velocity

• Increasing velocity

• No change in velocity

• Zero velocity

What is the SI unit of acceleration?

• Joule

• Newton

• Meter per second squared

• Kilogram

In the absence of external forces, what happens to the momentum of a closed system?

• Increases

• Decreases

• Remains constant

• Fluctuates randomly

Which of the following quantities is a measure of the rate of change of velocity over time?

• Momentum

• Kinetic Energy

• Potential Energy

• Acceleration

The product of an object's mass and velocity is known as:

• Acceleration

• Kinetic Energy

• Momentum

• Potential Energy

In a collision between two objects, what happens to the total momentum of the system if no external forces act on it?

• Increases

• Decreases

• Remains constant

• Becomes zero

In a collision, which of the following quantities is conserved if no external forces act on the system?

• Velocity

• Momentum

• Kinetic energy

• Potential energy

Which type of energy is associated with an object's motion?

• Potential Energy

• Kinetic Energy

• Momentum

• Acceleration

What happens to the total momentum of a system in the absence of external forces?

• Increases

• Decreases

• Remains constant

• Fluctuates randomly