Gravity and Kinetic Energy Teaching Slides, 2.1 If you are using the PowerPoint slides, log in to your FOSSweb account on your internet browser. Then, cut and paste these links into your browser. Resources by Investigation provides access to all notebook masters, teacher masters, online activities, and video content: https://www.fossweb.com/resources-by-investigation?folioID=G4648384&parentID=G4636900 The eBook provides access to all FOSS Science Resources articles: https://www.fossweb.com/delegate/ssi-wdf-ucm-webContent/Contribution%20Folders/FOSS/ebooks_NG/NG_Gravity_Kinetic_Energy_SRB_FB/index.html If you are using the PDF versions of the slides, simply log in to your FOSSweb account before starting; the embedded links will take you directly to the Resources by Investigation and the eBook. If you plan to use these slides offline, be sure to plan ahead and download the necessary duplication masters from the Resources by Investigation section of FOSSweb. Gravity and Kinetic Energy Course, 2.1: Mass and Weight

Review force and gravity What is a force? What is gravity? When you weigh yourself on a scale, what does that have to do with gravity? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 1

Focus question G&KE FQ 2.1 What is the relationship between mass and weight? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 2

Spring Scales Show how to set up lab and get materials for each team. All spring scales need to be calibrated to zero. Gravity and Kinetic Energy Course, 2.1: Mass and Weight

Weigh with spring scales What is the weight of one marble? (Look on the side with the N) Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 3

Introduce unit of force N stands for newton, which is a measure of force. Newton (N)-a unit that describes measurement of force Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 4

Introduce unit of force What is pushing or pulling on the bag of marbles? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 4

Introduce unit of force There are really two forces on the bag of marbles. A force of gravity from Earth pulling it down toward Earth. The force of the spring scale pulling it up, making it so that it does not fall. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 4

Introduce unit of mass You probably noticed the side of the scale with the g on it. What might it represent? Grams (g)-a unit of mass Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 5

Introduce unit of mass Mass-the amount of stuff in an object. Weight- measurement of force of gravity that is acting on an object. Think about what would happen if you took the marble up to the International Space Station. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 5

Mass and Weight of a Marble Introduce unit of mass Mass and Weight of a Marble Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 5

Predict weight and mass How much do you think two marbles will weigh? What do you think the mass of two marbles will be? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 6

Predict weight and mass The focus of this part of the investigation is to find the relationship between mass and weight. Collect data for the mass and weight of one to four marbles. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 6

Predict weight and mass Conduct multiple trials, predict the weight and mass before measuring, and record in a table. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 6

Predict weight and mass Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 6

Discuss data What patterns do you notice about the weight of the system when adding marbles? What patterns do you notice about the mass of the system when adding marbles? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 8

Mention Newton’s laws The unit of force we’ve been using, the newton, is named after Sir Isaac Newton (1643–1727), the English physicist and mathematician who wrote three laws of motion that explain behavior of moving objects. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 9

Compare mass and weight What is the difference between mass and weight? Will the mass stay the same everywhere that the object goes? Will the weight stay the same everywhere that the object goes? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 10

FOSS Science Resources Read “A Weighty Matter” on page 26. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 12

Reading comprehension strategy Write the Think Questions and a question of your own in the first column. As you read, jot down information that relates to the question in the second column. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 13

Review vocabulary Spend a few minutes reviewing the vocabulary for this part. Update the vocabulary index and table of contents in your notebook. gram mass newton weight Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 14

Answer the focus question What is the relationship between mass and weight? Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 15

Review notebook entries Review your notebook entries with a partner. Ask questions, give each other constructive feedback, and revise or add to your responses, based on new information. Gravity and Kinetic Energy Course, 2.1: Mass and Weight Step 16