Physics 9A

What is the symbol for the prefix kilo-?

• kg

• k

• m

• g

Is 20 g greater than, less than, or equal to 2 kg?

• equal to

• less than

• greater than

Theory or Law? Newton's first ______ of Motion: Objects will stay in motion unless stopped. Shows what happens with moving objects.

• Theory

• Law

Convert 9 meters to cm:

• 900 cm

• 90 cm

• 0.9 cm

• 0.09 cm

Which of these can change when new evidence is presented?

• Theory

• Law

How many significant figures does the following number have: 0.002040

• 6

• 3

• 1

• 4

How many minutes are in four hours?

• 175 min

• 280 min

• 240 min

• 325 min

Testing a hypothesis often involves a(n):

• answer

• problem

• experiment

• conclusion

Solve: 15.07 kg - 12.0 kg

• 3.10 kg

• 3.0 kg

• 3.1 kg

• 3.07 kg

nano- is a prefix that is equal to.....

• 10^-12

• 10^-9

• 10⁹

• 10¹²