Vocab
Swingers
Run for the Lifeboats
What's Wrong with This?
Potpourri
100
What is capacity?
Capacity is the amount something holds.
100
How can you make a pendulum go faster?
Make it shorter.
100
How does the size of a boat, or it's capacity, affect the number of passengers it holds.
The bigger it is, the more passengers it holds.
100
Morgan and Landon want to see who can kick a ball the farthest. Morgan lines up and kicks a volleyball. Landon winds up and kicks a bowling ball. What's wrong with this?
He kicked a bowling ball! And they changed two things (the person and the ball). Only the person should change. The ball should be the same.
100
A 100 cm string swings 8 times. An 80 cm string swings 10 times. How many times do you think a 90 cm string will swing?
9 times. 100 cm is slower and swings 8. 80 cm is faster and swings 10. 90 cm is in between.
200
Which variable is do you choose to change?
The independent variable.
200
What happens when you make a pendulum longer?
It goes slower.
200
How does the shape of a boat affect how it floats.
It has no affect.
200
Tori and Corbin want to see which pet food their dogs like best. Tori feeds Dog Chow to her dog and Corbin feeds Dog Biscuits to his dog. What is wrong with this?
The fed two different foods to two different dogs. Only change the food. Keep the dog the same.
200
Finish this statement: As a boat's capacity goes up ...
The amount of passengers goes up too!
300
Which variable depends on what you are testing?
The dependent variable.
300
What happens if you add more weight to a pendulum?
Nothing happens.
300
How could you make your lifeboat sink?
Pile on the pennies to one side, drop them roughly, etc.
300
Josh and Lauren want to see which of their sleds slides the farthest. Josh takes his sled and slides in his backyard. Lauren takes her sled, and slides in her backyard. This is obviously wrong. What variable(s) should they control (keep the same).
They should keep the hill the same (pick a backyard people). They should also keep the person the same (weight).
300
Which of these would NOT affect how many pennies a lifeboat can hold? Boat size, penny placement, the shape of the water container.
The shape of the water container! It doesn't make a difference.
400
If the numbers in a data set are ordered least to greatest, what is the median?
The median is the middle number. If there are two middle numbers, it is the average of those two.
400
The longer a pendulum, the _____.
The slower it goes.
400
What was the independent variable in our lifeboats experiment? Hint- what did we choose to change?
The size of the boat.
400
Three friends of equal intelligence want to do an experiment to see who can get the highest score on the test. Nigel goes to bed early. Carson studies for two hours. Claire has a healthy breakfast. They all take the same test. What are the variables in this experiment?
Variables: bed time, study time, diet (food).
400
Which of these was not a variable in our pendulum experiments? Release position, Mass, String Length, Day of the Week.
Not a variable: Day of the Week.
500
In an experiment, what is a variable?
A variable is something you can change.
500
If Kyle's grandfather clock is running too slow. What can he do to the pendulum inside?
He can shorten it.
500
What was the dependent variable in our lifeboats experiment? Hint- what did we measure?
The passengers.
500
Three friends want to do an experiment to see who can get the highest score on the test. Nigel goes to bed early. Carson studies for two hours. Claire has a healthy breakfast. They all take the same test. What is the control (doesn't change) in this experiment?
The test.
500
How can you make a prediction using a line graph?
Graph your results and draw a line. All of the possible results should be along that line.
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