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29 Cards in this Set
- Front
- Back
What is energy
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Energy is what is needed to do work.
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What are they types of energey
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Mechanical
Sound Light Heat/thermal |
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What is force?
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A push or pull that causes an object to move, stop, or change direction
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What is friction
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Rubbing of one object against another object
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What is gravity
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The force that pulls objects towards the center of the earth.
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What is heat?
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Thermal energy is felt as heat, heat is the movement of thermal energy from one place to another
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what is the main source of light energy
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sunlight
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What does light energy do?
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helps us communicate and share information
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What is magnetism
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Attraction to a magnet because it contains iron
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What is mass?
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The amount of matter in an object.
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What is mechanical energy?
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Energy produced by a machine or moving part. Mechanical energy is the ability to do work.
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What does mechanical energy do?
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Mechanical energy enables an object to apply force to another object in order to cause it to move or change positions.
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What is a meter?
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A metric unit used to measure length or distance.
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100 cm is?
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1 meter
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What is a meter stick?
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A tool one meter long that is marked off in centimeters
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What is motion?
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A change in position.
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What is pitch?
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The speed of vibration.
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What is position?
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Position is where an object is located in space.
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What does it mean to predict.
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Predict means to guess before something happens.
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What is solar energy?
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Energy produced by the sun.
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What is sound energy?
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Energy from vibrations that you hear. Sound energy helps us to communicate and share information
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What is a sound recorder.
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A tool used to record sound.
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What is a sphere
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A three dimensional object such as a ball.
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What is a spring scale?
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A scale that measures force
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What is thermal energy?
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energy produced by heat.
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How do you produce thermal energy
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by rubbing things together, burning things, mixing chemicals. Heat/thermaal energy helps cook food and keeps us warm in the winter
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What is vibration?
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Rapid movement back and forth.
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What is weight?
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A measure of gravity's pull on an object.
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What is work?
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movement of change, it happens when a force causes change.
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