Define Energy
What is the ability to do work?
Hammering a nail, riding a bike
What is mechanical or kinetic energy.
Car engines convert chemical energy to ___________________ energy.
What is mechanical, thermal, sound
On the top of a roller coaster before it goes down the hill this type of energy is present.
What is potential energy?
batteries, stored food
What is chemical energy.
Water falls from a cliff into a river. Name the starting and ending types of energy.
What is GPE and sound/mechanical energy.
In the Drive the Nail Lab what type of energy is PE converted to as the cylinder hits the nail?
What is Kinetic Energy.
Foam, rubber, and fiberglass are all good _________________.
What is insulators.
sunlight, rainbow, radio waves, x rays
What is electromagnetic or light energy
Sunlight hits a pool warming it. Name the starting and ending energy types.
What is electromagnetic/light to thermal energy.
A car engine gives off 70% thermal energy, what is its maximum efficiency.
What is 30%?
This type of material/ substance is the absorbs heat energy the best.
What is dark materials.
Energy stored in the nucleus of an atom
What is nuclear energy
A soccer player eats a granola bar and goes to play a soccer game. Name the starting and ending energy types.
What is chemical energy to mechanical and thermal energy?
An object has 100 Joules of PE before it falls. How much PE and KE are present halfway and right before it hits the ground.
What is 50J KE and PE halfway and 0J PE and 100J KE at the end?
Ways to make a home more energy efficient (3).
What is energy efficient appliances, double paned windows, window treatments, LED lights, trees/vegetation, etc .
What is static and current
A student charges their cellphone. Shortly after the student receives a phone call. Name the energy transformations involved (4).
What is electrical current to potential chemical to electromagnetic to sound.