kinetic energy
Moving objects have kinetic energy. This topic is part of Physics within Science & Nature. This page currently draws on 9 supporting questions, with answers and bonus facts available below.
kinetic energy trivia questions
Kinetic energy is the energy of what?
Answer: Motion
Bonus fact: Moving objects have kinetic energy.
Which change increases kinetic energy most strongly: doubling speed or doubling mass?
Answer: Doubling speed
Bonus fact: Kinetic energy depends on speed squared.
What is the classical formula for kinetic energy?
Answer: ½mv²
Bonus fact: Mass and the square of velocity determine kinetic energy.
What physical force allows ordinary friction brakes to slow a vehicle?
Answer: Friction
Bonus fact: Friction converts kinetic energy into heat.
What force provides much of the speed after a traditional coaster's first big hill?
Answer: Gravity
Bonus fact: Potential energy converts to kinetic energy on descents.
Wind energy uses moving air to turn what?
Answer: Turbines
Bonus fact: Wind turbines convert kinetic energy into electricity.
Which change usually increases the rate of many chemical reactions?
Answer: Raising the temperature
Bonus fact: Higher temperature gives particles more kinetic energy and increases the fraction of collisions able to overcome activation energy.
When a falling object's potential energy decreases, what generally increases?
Answer: Kinetic energy
Bonus fact: Energy transforms from gravitational potential to motion.
What energy transformation occurs as water falls through a dam?
Answer: Gravitational potential energy to kinetic energy
Bonus fact: Turbines then convert motion into mechanical energy.