Physical Science Cumulative Final Exam

Metric Conversions: 6.8 m = ___ km

• 0.068 km

• 6800 km

• 68 km

• 0.0068 km

Metric Conversions: 400 cm = ___ m

• 40 m

• 0.04 m

• 4 m

• 0.4

Metric Conversions: 29.5 g = ___ mg

• 2950 mg

• 29,500 mg

• 295 mg

• 0.0295 mg

Metric Conversions: 250 mL = ___ L

• 0.25 L

• 25 L

• 2500 L

• 2.5 L

Convert 7,500,000 to scientific notation

• 0.75 x10^5

Convert 0.000035 to scientific notation

Convert 4.75 x 10^{-2} to standard notation

• 4750

• 475

• 0.4750

• 0.0475

• 0.000003

• 300,000

• 30,000

• 0.00003

When performing an experiment, a scientist will predict what they think will happen based on background research. This is called ___.

• making an observation

• collecting and interpreting data

• drawing a conclusion

• forming a hypothesis

What skill is a scientist using when she notices that a brick falls more quickly than a feather?

• Making an observation

• Collecting and interpreting data

• Drawing a conclusion

• Forming a hypothesis