OpenSciEd 8.1

The breaking point of a baseball bat is 756 Newtons, the elastic limit of a baseball bat is 530 Newtons. When a baseball hits the bat, both objects experience a force of 500 Newtons. What happens to the bat?

• The bat bends and it permanently deformed.

• The bat bends, but isn't permanently deformed.

• The bat breaks.

• The bat does not deform.

Which material would you expect to have the highest elastic limit.

• Styrofoam

• Wood

• Steel

• Aluminum

What best explains what usually happens to a volleyball during the collisions that happen during a game?

• A volleyball doesn't deform because there isn't enough force in the collisions.

• A volleyball doesn't deform because the force is less than the elastic limit.

• A volleyball deforms temporarily because the force is less than the elastic limit.

• A volleyball deforms permanently because the force is greater than the elastic limit.

What is experimental design?

• It's the process of planning and conducting a scientific experiment to answer a research question.

• It's conducting a scientific experiment without a specific research question.

• It's guessing the outcome of a scientific experiment.

• It's randomly selecting variables to test.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS1-6

Why is a control group important in an experiment?

• It provides a baseline for comparison.

• It increases the sample size for better statistics.

• It ensures the treatment is effective.

• It makes the experiment more interesting.

How can you interpret experiment results?

• By guessing the results without data analysis

• By analyzing data, identifying patterns, and drawing conclusions based on evidence.

• By randomly selecting a conclusion without evidence or analysis

• By ignoring data and making assumptions based on personal beliefs

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-2

When any two objects make contact, each object applies a force on the other surface they touch. The strength of those forces are...

• the same and in the same direction.

• different but in the same direction.

• the same but in opposite directions.

• different and in opposite directions.

Tags

NGSS.MS-PS2-1

the push or pull an object experiences due to making contact with another object.

• contact forces

• elastic limit

• breaking point

• deformation

Tags

NGSS.MS-PS2-1

a temporary or permanent change in shape, motion, or function of an object.

• contact force

• elastic limit

• deformation

• breaking point

the largest amount an object can be deformed and still return to its original shape after the force is removed.

• contact force

• elastic limit

• deformation

• breaking point