Lessons 1 and 2-Why do some thing stop while others keep goi

Front

What is a Rube Goldberg machine?

Back

A complicated device designed to perform a simple task in an indirect and overly complex way.

Front

What is an independent variable?

Back

The variable you are testing in an experiment.

Front

What is a perpetual motion machine?

Back

A hypothetical machine that can run forever without an energy source.

Front

What is a pendulum?

Back

A weight suspended from a pivot that swings back and forth under the influence of gravity.

Front

What is a dependent variable?

Back

The variable you are measuring in an experiment.

Front

What is the purpose of a scientific experiment?

Back

To test a hypothesis by manipulating variables and observing the outcomes.

Front

What does it mean to control a variable?

Back

To keep a variable constant during an experiment to ensure a fair test.

Front

What is an example of a simple machine?

Back

A lever, which helps lift heavy objects with less effort.

Front

What is energy?

Back

The ability to do work or cause change.

Front

What is motion?

Back

The change in position of an object over time.