Force and Motion
Define force.
A push or a pull.
Name 3 types of clouds and what kind of weather each one brings.
Cirrus- fair weather
Stratus- steady rain
Cumulus- Fair weather
What happens to colored sugar when it is added to water?
The sugar dissolves and colors the water.
Why are fireplaces typically made of either brick or metal?
Brick and metal are able to withstand high heat.
Condensation
the cooling of water vapor that changes to water droplets that cling together -- CLOUDS form
What is air resistance?
Friction in the air.
What do fronts bring?
A change in weather
Precipitation
Which best explains what happens to the inside of an egg when it is boiled?
The liquid becomes solid.
What causes your skin to feel warm when it is in the sun on a summer day?
The Sun radiates energy that passes through space and the atmosphere to your skin.
anemometer
instrument used to measure wind speed
What kind of force do brakes use to stop a moving bicycle?
Friction
What kind of weather does a high pressure system bring?
Fair weather
Which is a chemical change?
A change in which a new material is formed.
Which type of heat transfer is this:
Ben warming up by the camp fire.
Radiation.
Unbalanced Force
two or more forces that are not equal and opposite of one another; can cause change in motion
A car traveled 60 miles in one hour, while a bus traveled 120 miles in two hours. Whichbest describes the motion of the vehicles? (speed = distance ÷ time)
They traveled at the same average speed.
What is a sea breeze?
Land heats up faster during the day than water does. As the beach gets warm during the day, it heats the air above it. The warm air rises and cool air from the ocean is pulled in to replace it. So, air flows from the ocean to the land.
Which is a way that a piece of paper can go through a chemical change?
burn the paper with fire
Which is most responsible for the uneven heating of the air in the atmosphere?
Convection
Ecosystem
All the living and non living thing in an area.
What 2 types of forces does a person need to overcome to push a box up a hill?
How is wind formed?
Unequal heating of the land causes air to flow from areas of higher pressure to areas of lower pressure.
Which materials are good insulators?
Plastic
Wood
Which type of heat transfer is this:
Lucy wraps herself in an electric blanket to keep warm.
Conduction
Mass
How much matter is in something.