Energy Types Quiz

Kinetic energy depends on:

• Mass only

• Velocity only

• Both mass and velocity

• Neither mass nor velocity

What happens to the kinetic energy of an object if its velocity is doubled?

• It becomes four times

• It becomes half

• It doubles

• It remains the same

Which of the following is the correct formula for kinetic energy?

• KE=mv2KE = mv^2KE=mv2

• KE=12mvKE = \frac{1}{2}mvKE=21mv

• KE=12mv2KE = \frac{1}{2}mv^2KE=21mv2

• KE=12m2vKE = \frac{1}{2}m^2vKE=21m2v

A body of mass 5 kg moves with a velocity of 2 m/s. What is its kinetic energy?

• 5 J

• 10 J

• 20 J

• 50 J

If the mass of a moving object is doubled, while keeping its velocity constant, the kinetic energy:

• Remains the same

• Doubles

• Becomes half

• Quadruples

Gravitational potential energy depends on:

• Mass, height, and gravity

• Velocity and mass

• Height and velocity

• Height and area

What is the formula for gravitational potential energy?

• PE=mghPE = mghPE=mgh

• PE=12mghPE = \frac{1}{2}mghPE=21mgh

• PE=mg2hPE = mg^2hPE=mg2h

• PE=mv2PE = mv^2PE=mv2

If a 2 kg object is raised to a height of 10 m, what is its gravitational potential energy? (Take g=9.8 m/s2)

• 19.6 J

• 98 J

• 196 J

• 100 J

An object has 500 J of gravitational potential energy at a height of 5 m. What is its mass?

• 5 kg

• 10 kg

• 20 kg

• 50 kg

If the height of an object is doubled, the gravitational potential energy will:

• Remain the same

• Double

• Become half

• Quadruple