Friction
Speed
Measurement
Science Words
Review
100
Friction is caused by tiny ____________ and ____________.
Hills and Valleys
100
What 2 things do you need to know to find speed?
Distance and time
100
What unit do we use to measure force?
Newtons
100
The science of motion
Physics
100
Who discovered gravity?
Isaac Newton
200
What type of friction: You pull a chair across the floor.
Sliding Friction
200
What is the formula for speed?
Speed = distance / time (distance divided by time)
200
How do we measure motion?
Speed
200
More _____________ = More friction
Mass
200
What is a force?
A push or a pull
300
What type of friction: Your desk is sitting on the floor.
Static Friction
300
Name any unit for measuring speed.
Meters per second, miles per hour, feet per minute...
300
Name a tool we can use to measure distance:
Ruler, tape measure, yard stick, meter stick
300
What is a hypothesis?
A good guess
300
Name one thing that can happen if you don't follow science safety rules.
You could get hurt, you could hurt someone else, you might not learn, you might break something, you might spill something...
400
The bigger the __________________, the greater the friction.
Mass
400
Calculate the speed: Remy is running around the school. He runs 150 meters in 3 hours.
150 divided by 3 = 50 meters per hour
400
Name a tool we can use to measure time.
Clock, stopwatch, calendar, the sun:)
400
You can use a ____________________ to make friction less.
Lubricant (oil, grease, etc).
400
This kind of friction is in the air or water.
Fluid friction
500
What type of friction: A skateboard rolling down a hill.
Rolling friction
500
Calculate the speed: A race car drives 270 miles in 3 hours.
90 miles per hour
500
What measurement of mass considers gravity?
Weight
500
This force always causes everything to pull on everything else.
Gravity
500
Name 1 lab from science this year and what we learned.
Bubblegum physics--Speed Flying high--Speed Friction Stations--Friction Paperbag Predictions--Scientific Method
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