Changes in Matter
Tearing a piece of paper in half is an example of this
What is a physical change?
Energy from the sun reaches Earth using this kind of heat transfer.
What is radiation?
What is energy?
A ball sitting at the top of a hill has this kind of energy.
What is gravitational potential energy?
This is the force that stops things from moving by converting the kinetic energy of movement to the kinetic energy of heat.
What is friction?
Combining milk and vinegar causes a white solid to form in the milk, and a sour smell different from both milk and vinegar is produced, showing evidence of this kind of change.
What is a chemical change?
This color of visible light has the most energy and the highest frequency, causing it to be the least bent when passing through water.
What is violet light?
This is the material that waves can move through.
What is a medium?
In a system without friction, a pendulum which is swinging will have this much energy at the top of the swing compared to at the bottom.
What is the same amount?
This kind of force is exerted by a difference in charge, and can be shocking!
What is electrical force?
A chemical reaction occurs when vinegar and baking soda are mixed. A gas and a salt are produced. The mass of the vinegar and baking soda is this compared to the mass of the gas and salt.
What is the same?
Light which passes through water is bent, causing the image to be larger or distorted, an example of this transformation.
What is refraction?
Sound waves and earthquake waves are examples of this kind of wave which cannot travel unless there is matter present.
What is a mechanical wave?
A car moving down a rollercoaster transforms this kind of energy at the top of the hill to this kind of energy at the bottom.
What is potential energy to kinetic energy?
Acceleration causes a change in at least one of these two things.
What are speed and direction?
Energy is released when gaseous carbon dioxide is formed into solid dry ice through deposition, an example of this kind of change.
What is a physical change?
This happens to energy as the wavelength increases.
What is decreases?
When light moves from air to water, refraction occurs because its speed changes in this way.
What is slows down?
After falling off a moving bike, the mechanical kinetic energy of movement is transformed to this kind of kinetic energy by the force of friction.
What is thermal energy?
A 50kg roller coaster car moving at a constant speed of 10 m/s has this net force acting on it.
What is 0?
Heating up a beaker with chemicals reacting will likely influence the reaction in this way.
What is speed it up?
Electromagnetic waves are considered this kind of wave because their oscillations are perpendicular to the direction the wave moves. This allows them to travel without needing a medium.
What is transverse waves?
Sound waves move fastest through this medium.
What is a solid?
This kind of energy comes from moving electrons and is important for almost every aspect of modern life.
What is electrical energy?
A push of 20 newtons on a 10kg cat will cause it to accelerate at this rate.
What is 2 m/s2?