Speed & Energy
The ability to do work.
What is energy?
Height gives this to roller coasters, for example.
What is energy?
A pretend version of something that scientists use when the real thing is too big, small, or complicated to work with.
What is a model?
When one object hits or crashes into another object.
What is a collision?
A person who uses science to come up with solutions to problems.
What is an engineer?
The amount of energy stored in an object.
What is stored energy?
Mateo, Katy, and Rob are all competing in a sled race. Mateo started at a height of 24 ft, Katy started at a height of 17 ft, and Rob started at a height of 10 ft. The winner is the person that goes the fastest.
Who is Mateo?
A change in the position of an object.
What is motion?
Energy that is due to gravity.
What is height (gravitational) energy?
A simple machine, made of a beam that pivots from one point.
What is a lever?
The rate at which someone or something is able to move.
What is speed?
Rob wants to win the next sled race. He asks you for advice.
What is Rob should start at a higher point on the hill?
An experiment where only one thing is changed, and everything else stays the same.
What is a fair test (variable)?
An invisible force that pulls any object down, toward the Earth.
What is gravity?
A machine that uses a series of energy transfers, such as one domino knocking over a line of dominoes.
What is a chain reaction machine?
Food provides energy and athletes need a lot of energy so they can move quickly.
Why do athletes usually eat a lot of food for breakfast?
True or false.
One little domino can knock down one large domino.
What is false?
Repeated tests in an experiment.
What is trials?
Energy that is in the form of sound that can be heard.
What is sound energy?
A test used to discover new information about a question.
What is an experiment?
Acme Amusements is developing a new ride called the Spring-o-Matic. It stores energy in very large springs. When energy is released, the springs move the riders up and down. There are two versions of the ride. Ride A uses small, thin spring and Ride B uses a big, thick spring to store energy. Which ride moves faster? Why?
What is Ride B? The larger spring stores more energy.
When a collision happens, some of the energy will become _____________.
What is sound?
To guess what will happen based on things you know.
What is predict?
When energy travels from one place to another.
What is energy transfer?
The famous person that chain reaction machines are named for.
Who is Rube Goldberg?