Force
A force that opposes the motion of an object is called...
friction
Motion is described by an object's direction and...
speed
What TWO types of energy does the sun emit?
Radiant and thermal energy
What are the building blocks of matter?
Which tool can be used to separate white light into colors of the visible spectrum?
A prism.
A push or a pull that causes an object to stop, move, or change direction is called a...
Force
Unless a force acts upon it, what does an object in motion tend to do?
What energy transformation takes place when a stove is turned on?
Electrical energy to heat energy
When two or more substances are combined and they do not lose their identifying characteristics. Examples could be soil, concrete, mud puddle, etc.
Why do electricians always wrap wires in plastic?
Plastic is a good electrical insulator.
Steve throws a tennis ball very hard against a solid wall. What happens after the ball hits the wall?
The energy of the moving ball pushes it away from the wall.
_____ is a measure of how fast an object is moving.
Speed
List all 5 forms of energy.
Mechanical, electrical, light, thermal, and sound.
Matter can change from a solid to a liquid to a gas when undergoing what kind of change?
Increase of temperature
What causes the seasons?
Seasons are caused by the Earth's tilt on its axis as it orbits the Sun.
The result of a force moving an object is called...
Work
Give an example of kinetic energy.
Answers will vary
Rubbing sandpaper on a piece of wood produces what two types of energy?
Sound and heat
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms to move...
Faster
What are the three plate boundaries and what do they mean?
Convergent: Plates that move together
Divergent: Plates that move apart
Transform: Plates that slip and grind past each other
Give an example of a surface with very little friction and a surface with a lot of friction.
Little friction: tile floor, wood floor, glass etc.
A lot of friction: carpet, grass, gravel, etc.
Ethan rolled a marble on a flat floor. The marble collided with his dog who was sitting on the floor. Will the marble change direction or continue in the same direction? Why?
The marble will change direction because when the marble collided with the dog, an energy transfer happened causing the marble to change direction.
What are two ways to conserve energy in your home?
Turn off the lights when you leave the room, unplug appliances that are not being used, use LED bulbs, etc.
True or False: Matter does not gain or lose mass during phase changes.
True
Draw and label the four moon phases in the correct order.
New moon, first quarter, full moon, last quarter