Energy
Name two ways to classify energy.
Potential energy and kinetic energy
Are the italicized words Cause or Effect?
A boulder rolls off a cliff because gravity exerts a pulling force.
Cause
What does the word "position" mean?
the location of an object
On a Nintendo switch, the game's battery is a source of ________________ energy. The electrical energy changes into _____________ energy and ______________ energy to see and hear the game.
electrical, light, sound
There is a collision between a soccer ball and a player's foot. How is energy transferred during the collision?
The hard kick transfers kinetic energy to the ball
What words describes the energy that an object has due to its motion?
kinetic energy
Are the italicized words Cause or Effect?
There is an energy transfer from bowling ball to bowling pin because a bowling ball collides with a bowling pin.
Effect
What are two examples of forces?
applied force, force of gravity, force of friction
On a pinwheel, kinetic energy from the wind moves to the pinwheel blades. The pinwheel blades turn using the ______________ energy. The movement of energy from one place to another place is called energy _____________.
kinetic, transfer
What is collision?
whenever one object bumps or crashes into another, causing an energy transfer
What word means "what is done when a force moves an object over a distance?"
work
Do the italicized words show cause or effect?
Since the friciton between your skin molecules opposes motion and converts that motion into thermal energy, rubbing your hands together makes them feel warm.
Cause
What has more kinetic energy -- a train going 60 miles per hour or a train going 40 miles per hour down the train tracks?
Why?
Train going 60 mph; the faster an object's speed the more kinetic energy it has
In a Jenga game, each piece of wood in the game has _______________ energy. As a wooden block falls some potential energy changes to _______________ energy. Some of the kinetic energy also changes into _____________ energy changes into _____________ energy when the blocks hits the table.
potential, kinetic, sound
Imagine riding a bumper car and crashing into your friend's parked bumper car.
What happens before the collision?
Your car has kinetic energy
What is energy?
the ability to do work
What is the effect in this event?
Energy moves from domino to domino, so the dominos fall.
The dominos fall
What has more kinetic energy, a rolling soccer ball or a rolling foursquare ball?
Why?
A rolling soccer ball; an object that weighs more has more kinetic energy
With a blender, electric energy moves from the outlet through the _________ to the blender. The moving blade changes some of the electrical energy into ______________ energy. The noisy blender also changes some of the electrical energy into ____________ energy.
cord, kinetic, sound
Imagine riding a bumper car and crashing into your friend's parked bumper car.
What during before the collision?
The moment you bump, your kinetic energy transfers into your friend's bumper car
What words describe the stored energy in an object?
potential energy
What is the cause in the following sentence?
As a result of plugging in and turning on the blender, the motor converts electrical energy into mechanical energy and forces the blades to spin.
Plugging in and turning on the blender
What does the word "motion" mean?
A change in position
Why is this an example of energy transfer?
The electrical energy from a battery changes into light energy to turn on a lantern bulb.
Imagine riding a bumper car and crashing into your friend's parked bumper car.
What happens after the collision?
Your bumper car slows down or bounces backward, while your friend's car is pushed forward. Some of the kinetic energy is changed into sound energy.