Final P1 2022 PHY Graphing, Measurement, & Scientific Method

Darlene places a bolt in the graduated cylinder to find its volume. Its starting volume is 60mL. After she puts the bolt in the graduated cylinder the water level rose to 110 mL. What is the volume of the bolt? (type the number only)

The graph shows energy production in the United States in 1967 and 2007 for several sources of energy. Which conclusion is supported by the graph?

• In 1967 more energy was produced in oil than in 2007

• More energy was produced in 1967 than in 2007 in every category.

• In 2007, more energy was produced from renewable energy sources than from fossil fuels.

• People in the United States were more concerned about conserving energy in 1967 than they were in 2007.

Which of the following are NOT true about why we want to test only one independent variable at a time?

• Because it is hard to setup a data table with more than one variable

• To better identify what is causing the changes

• It is what has always been done

• It's easier to perform the experiment

Carla needs exactly 100.00 grams of sulfur powder for an experiment. The picture shows the mass on the scale so far. She did not zero the scale before starting. Carla knows that the weighing paper weighs 4.90 grams. How much more sulfur powder does Carla need? type only the number

Jack has a rock. The rock has a mass of 20g and a volume of 5cm³. What is the density of the rock? Type only the number

Mr. Lee wants to confirm the metal used in a ring with a mass of 31.03g. The volume of the ring is 1.45 cubic centimeters (cm³). What is the metal composition of the ring?

What was the net loss in glacier ice thickness between the years 1960 and 1990? type only the number

Convert this number to standard notation: 2.4 x 10^-3

During an experiment, a student measures the mass of ice and of liquid water and then places the mixture into a freezer for a day. The table shows the data.

What will the student have at the end of the experiment?

• 100 grams of ice

• 125 grams of ice

• 125 grams of liquid water

• 150 grams of liquid water

A group of students measures the period of a pendulum while varying the pendulum length and mass. Their results are shown in the table. Which conclusion is best supported by their data?

•  Increasing the mass of a pendulum decreases its period.
• Increasing the mass of a pendulum does not affect the period.
• Increasing the length of a pendulum decreases its period. 
• Increasing the length and the mass of a pendulum causes an increase in its period