Scientific Measurement

Scalar quantities...

• deals with both magnitude (size) and direction

• deals with only magnitude (size)

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

Vector quantities...

• deals only with magnitude (size)

• deals with both magnitude (size) and direction

In our class we are more focused on accuracy or precision?

• Accuracy, we want to be right all the time!

• Uh, both? We want our data to be precise and right.

• Precision, we want our data to relatively be similar. That's how we know if we're doing the lab right!

Tags

NGSS.MS-PS3-1

Scientific notation is useful for what reason(s)?

• It's a way to write very big or small numbers.

• It's harder to read.

• It saves us from writing so many zeroes.

When a number in scientific notation has a negative exponent, what does that imply about the number and what way does the decimal have to move?

• the number is less than 1, decimal moves to the left

• the number is bigger than 1, decimal moves to the left

• the number is less than 1, decimal moves to the right

• the number is bigger than 1, decimal moves to the right

When a number in scientific notation has a positive exponent, what does that imply about the number and what way does the decimal have to move?

• the number is less than 1, decimal moves to the left

• the number is bigger than 1, decimal moves to the left

• the number is less than 1, decimal moves to the right

• the number is bigger than 1, decimal moves to the right

All solutions/answers must...

• be right!

• have units!

• be a number!

Tags

NGSS.HS-PS1-7

NGSS.HS-PS3-1