Introduction to Physics Re- Test

What step does every scientific experiment begin with?

• form a hypothesis

• Define the problem

• Collect data

• conclusion

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

• scientific method
• recipe
• data collection
• metric system

Determine the number of significant digits of 4.057

• 3

• 4

• 5

• 6

Tags

CCSS.8.EE.A.4

Determine the number of significant digits of 0.008050

• 2

• 3

• 7

• 4

Tags

CCSS.8.EE.A.4

Subtract and round to the appropriate number of significant digits.  $45.76-21.3$  

• 24.46

• 24.4

• 24.5

• 24

Tags

CCSS.5.NBT.B.7

Determine the number of significant digits of 4000.

• 1

• 2

• 3

• 4

Tags

CCSS.8.EE.A.3

Multiply and round to the appropriate number of significant digits.  $7.076\cdot3.40$  

• 24

• 24.058

• 24.06

• 24.1

Tags

CCSS.6.NS.B.3

In a measurement, significant figure consist of the digits known ___________.

• only

• plus one estimated digit

• plus two estimated digits

How many sig figs are found in 0.020 mL?

• 1

• 2

• 3

• 4

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴