Quiz#8: Conservation of Momentum

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

A testable answer to a scientific question

• Question
• Observation
• Hypothesis
• Experiment

What is an observation?

• A scientific statement based on ideas

• Using your senses to notice what is going on around you

• To be unaware of your surroundings

• The question that you want an answer to.

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

"I like KFC more than McDonalds!"

Is this a claim, evidence or reasoning?

• Claim

• Evidence

• Reasoning

"Rhinos have horns"

Is this a claim, evidence or reasoning?

• Claim

• Evidence

• Reasoning

Reasoning is __________________.

• A statement of conclusion that answers the original question/problem.

• Scientific data that supports the claim

• Explains why and how the evidence actually connects and supports the claim.

• Empirical Evidence

A vector is a ray with both ____________ and _____________.

• Wings and halos

• Space and time

• Direction and magnitude

• Radicals and exponents

If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?

• 20m
• 40m
• 0m
• -20m