Collisions
A rolling toy car hits a ball that is not moving. The toy car stops moving, and the ball bounces away.
The energy from the toy car transfers to the ball.
What energy transformations take place in a television?
electrical to sound, light, and heat
As Bobby entered a dark room, he pushed the switch on the wall to turn on the light. What makes the light turn on when Bobby pushes the switch?
electricity
A class sent four cars down the same ramp.
CarTime to Travel Down Ramp
Car 1 - 12 seconds
Car 2 - 15 seconds
Car 3 - 17 seconds
Car 4 - 18 seconds
Which car was fastest?
Car 1 - 12 seconds
A restaurant manager requires his staff to warm serving plates in the oven before serving some of the meals. Why does the restaurant manager most likely require plate warming?
The warmer serving plates will help to keep the food warmer for a longer time.
List at least 4 types of energy your phone uses
What is
Thermal
Sound
Light
Chemical
Electrical
Which term describes the ability to make things change or move?
Energy
Liam observed that when he hits Ball X harder, it moves faster. After the collision, Ball Y moves with greater speed.
Based on what he saw, Liam concluded that when Ball X moves faster, it has more :
mass
energy
weight
distance
energy
When a light bulb is turned on, what is the first energy transformation that is observed?
electrical to light
An exercise bike is attached by an electrical wire to a television.
When a person sits on the bike and moves the pedals, the television plays. The person finds that the television is not bright enough to see.
How can the person make the television work better?
Pedal faster to increase the energy moving to the television.
When car A hits car B, car A slows down, and car B moves forward. Why do the cars react this way after they hit each other?
The energy in car A moves to car B when they hit each other.
During an experiment, a student places a rubber ball on a metal ramp on a wooden table and allows the ball to roll down. The ball rolls down the ramp and lands in a foam cup.
Why does the cup have less energy than the ball?
The ball moves at a faster speed.
How can a student show that the Sun heats soil during the day but the same soil loses heat at night?
Use a thermometer to measure the temperature of the soil during the day and night.
The table below lists the temperature of four objects.
Object Temperature
1 - 10°C
2 - 15°C
3 - 25°C
4 - 30°C
How can heat transfer between objects?
from 3 to 2