Week 2-3
Energy
What is needed for matter to change from one state to another?
Meter stick
What scientific tool is used to measure length?
Light energy
Which form of energy travels faster than anything in the universe?
Refraction
When light bends as it passes through different material, what is it called?
liquid, gas and solid
What are the three states of matter?
Light
What helps you see objects through magnifying lenses?
Heat and light energy
Which forms of energy are produced by a light bulb?
Finish this statement: The more mass an object has,
the less effect a given force will have.
The objects will always displace the water.
What did Archimedes, discover when putting objects into water?
The object looks larger
What happens to an object when a scientist looks at it with a magnifying tool?
The atoms in the iron get scrambled
Why does a magnet lose strength each time you drop it?
Gravity and friction
What do Machines help people do work more easily by overcoming the forces of?
Chemical change
What is happening when your body changed the food you eat into energy you need to grow?
The sun
What is the source of most of the energy of the Earth?
Electrical and magnetic energy
Which form of energy has both a positive and negative charge?
Newton's law
An object, once set in motion, will tend to move in a straight line and at a constant speed of not other force changes the speed or direction of the object.
Chemical change
When a metal mailbox is rusting because of the weather, the rust is an example of what kind of change?
Nuclear Energy
Which form of energy was discovered when Albert Einstein learned how to break apart the nucleus of an atom?
Water, sound and light
What 3 things move in waves (up and down motions)?
The rough sandpaper slows down the ice cube because of friction
Why does ice and sandpaper not move against each other easily?