Objects in Motion
What is kinetic energy?
Kinetic energy is the energy an object has because it is moving.
What creates ocean waves?
Wind blowing over the water's surface creates ocean waves
What produces sound?
Sound is produced when objects vibrate, creating waves in the air
What is energy?
Energy is the ability to do work or cause change.
Why do we wear helmets?
Helmets absorb energy from impacts, protecting our heads.
How does a ball transfer energy when it rolls?
As the ball rolls, it transfers kinetic energy to whatever it hits.
What happens to wave energy as it nears the shore?
Wave energy increases and the waves grow taller as they reach shallow water.
How does sound travel?
Sound travels through air, water, or solids as waves of vibrating particles.
What are energy sources?
Energy sources include the sun, wind, water, and fuels.
How does a dam generate electricity?
A dam uses water flow to turn turbines, converting kinetic energy to electrical energy.
What happens during a car crash in terms of energy?
In a car crash, kinetic energy is transferred and absorbed, often bending metal and breaking objects.
What is a tsunami and how does it transfer energy?
A tsunami is a giant wave caused by underwater disturbances, transferring massive amounts of energy across the ocean.
What is an echo?
An echo is a sound that reflects off a surface and is heard again.
What is potential energy?
Potential energy is stored energy that depends on the position or shape of an object.
How does a microphone work?
A microphone converts sound energy into electrical energy.
How does friction affect energy transfer?
Friction converts some kinetic energy into thermal energy, which is why objects slow down.
How do waves transfer energy without transporting water?
Waves transfer energy through the motion of water particles in a circular path, while the water itself stays in place.
What are sound waves?
Sound waves are patterns of disturbance created by vibrating objects, transmitted through a medium.
What is the law of conservation of energy?
The law states that energy cannot be created or destroyed, only transformed or transferred.
What is the purpose of shock absorbers?
Shock absorbers convert kinetic energy of motion into thermal energy, smoothing the ride.