Energy, Speed, and Motion
The ability to cause motion or create change
What is energy?
What is energy transfer?
The transfer of thermal energy from one object to another.
What is heat?
A material that does not allow electrical current to flow is called
What is an insulator?
The distance an object travels in a particular period of time
What is speed?
Two cars both traveling at fast speeds would cause ________ damage compared to two cars traveling at slower speeds.
What is more?
Heat moves from ________ objects to ______ objects
What is Heat moves from hot objects to cold objects.
Two objects with opposite forces _________
What is attract?
______ causes an object not moving to gain kinetic energy.
What is a force?
In a collision two objects with the same mass and traveling at the same speed in opposite directions will bounce back ______________
What is bounce back at the same distance?
Particles at a higher temperature move________ than particles at a lower temperature.
What is faster?
Define conductor
What is a material that allows electrical current to flow through it?
Two bowling balls with the same mass are rolling down the lane. The green ball rolls at an average speed of 9.76 m/sec. The purple ball rolls at an average speed of 12.94 m/sec. The ball with the most kinetic energy is _________.
What is the purple ball?
Give an example of energy transfer that occurs during hockey practice.
What is energy transfer from the hockey stick to the hockey puck? Potential to kinetic energy. Sound energy from skates on ice. Thermal energy from skates to ice.
A sound wave moves in __________ directions.
What is all?
Energy always takes the path of ___________.
What is least resistance?
Explain the relationship between energy and speed of an object.
What energy transformations take place in a race car during a race?
What is potential energy changes to kinetic energy?
Kinetic energy is transformed to kinetic and sound energy.
________ determines the pitch of a sound
What is the speed of vibrating particles?
Explain the difference between a series and a parallel circuit.
In a series circuit all lightbulbs are on one path. If one lightbulb burns out, none of the bulbs will work.
In a parallel circuit, each lightbulb is on a separate path. If one lightbulb burns out the other bulbs will still light.