Unit quiz review

Identify the variable functions

• A variable that correlates with both the independent and dependent variables, potentially misleading results

• Confounding Variable

• A variable that is not of primary interest but may affect the dependent variable

• Independent variable

• A variable that is manipulated in an experiment

• Dependent variable

• A variable that is kept constant to prevent it from influencing the outcome

• Control Variable

• A variable that is measured in response to changes in the independent variable

• Extraneous Variable

How many feet is roughly equivalent to 12 meters? (enter numbers only)

How many meters is roughly equivalent to 45 feet? (enter numbers only)

What is a good mph approximation conversion for 21 m/s?

• 10.5

• 21

• 42

• 63

What is a good m/s approximate conversion for 36 mph?

• 18

• 36

• 72

• 108

The correct answer should be 25 meters. Your data collected measured 24.7, 24.9, 25.2, and 25.5.

• Accurate but not precise

• Precise but not accurate

• Both precise and accurate

• Neither precise nor accurate

The target measurement was 12.2 meters. Your answers were 17.1, 17.4, and 17.5 meters.

• Accurate but not precise

• Precise but not accurate

• Both precise and accurate

• Neither precise nor accurate

Your target measurement was 5 meters. Your measurement was 7 meters. What was your percent error? (enter number only)

What is the slope of this line?

If you travel 12.3 miles East and then another 3.1 miles East, what is your displacement?

• 15.4 miles East

• 9.2 miles East

• 15.4 miles West

• 9.2 miles West