Vocabulary
Definition: the ability to cause change
energy
What is a collision?
A collision is when 2 objects come together with impact
(crash)
A bowl of soup has
heat energy
kicking a soccer ball
transfer
motion of my foot transfers to motion of the ball
Definition: the process of an object changing position
What are the 2 characteristics that affect collisions?
speed and size of the objects
a cell phone charger has
electrical energy
transfer
the heat from the water transfers to the cup
Definition: energy that can cause change at a later time
stored energy
Which object has more energy during the collision?
Car A or B
Explain your reasoning
Car A becuase it is bigger. During a collision, the object the heavier object will hit the other object with more energy.
Stomping your feet has
energy of motion and sound
solar panel
transformation
energy changes from light to electricity
Definition: the movement of energy from place to place or object to object
energy transfer
Which car will experience a greater change AFTER the collision?
Explain your answer.
Car B will have a greater change after the collision because Car A is heavier. The heavier object transfers more energy to the other object making it bounce back further after the collision.
The phone ringing has
sound and electrical energy
You plug in a toaster and watch as the bread gets toasty
transformation
electrical--> heat, light
definition: the change of energy from one form to another
energy transformation
2 cars collide at the same speed.
Car A weighs 10 g
Car B weighs 40 g
Which has more energy?
Car B has more energy because it is heavier. When objects collide at the same speed, the heavier object has more energy.
Fireworks have
motion, heat, light, sound
You leave your backpack in the car and it gets hot from the sun.
transfer
heat energy moves from the sun to the backpack