Mass, Speed & Kinetic Energy

What is the formula for kinetic energy?

• KE = mv

• KE = 1/2 mv²

• KE = mv²/2

• KE = 2mv

What is the effect of increasing mass on kinetic energy if speed is constant?

• Kinetic energy decreases.

• Kinetic energy remains the same.

• Kinetic energy increases.

• Kinetic energy becomes zero.

If all objects are moving at the exact same speed, which would have the greatest kinetic energy?

• The object with the greatest mass.

• The object with the smallest mass.

• The object with the greatest volume.

• The object with the least density.

What happens to kinetic energy if the speed of an object doubles?

• The kinetic energy increases by a factor of two.

• The kinetic energy increases by a factor of three.

• The kinetic energy increases by a factor of four.

• The kinetic energy remains the same.

What is the unit of kinetic energy?

• Joule (J)

• Newton (N)

• Watt (W)

• Pascal (Pa)

Measure of the amount of matter.

• Weight

• Volume

• Density

• Mass

How does kinetic energy relate to everyday objects?

• Objects at rest have kinetic energy.

• Objects in motion, like a rolling ball or a moving car, have kinetic energy.

• Kinetic energy is only present in large objects.

• Kinetic energy is unrelated to the speed of an object.

What is the difference between mass and weight?

• Mass is the force of gravity on an object; weight is the amount of matter in that object.

• Mass is the amount of matter in an object; weight is the force of gravity on that mass.

• Mass and weight are the same; they both refer to the amount of matter in an object.

• Weight is the amount of matter in an object; mass is the force of gravity on that object.

Gram and kilogram are the units of measuring:

• length

• volume

• mass

• temperature

What is kinetic energy?

• The energy an object has due to its motion.

• The energy stored in an object at rest.

• The energy transferred during a collision.

• The energy an object has due to its position.