Calculating Mass and Weight: Weight (N) = Mass (mg or g or kg) x Gravity (10 N) Example: If Susan’s mass was 60 kg., this is how I would calculate her weight: Write down formula Make sure mass is in kg W= M x G Put numbers into formula W= 60 kg x 10 N Solve for weight W= 600 N Always units! Example: If a penguin has a weight of 310 N… this is how I would calculate its mass: Write down formula W= M x G Put numbers into formula 310 N= M X 10 N Solve for mass 310N/ 10 N = M Always write units M= 31 kg Questions: Rose has a weight of 215 N . What is her mass? Jack has a mass of 85000g. What is his weight?
Calculating Mass and Weight: Weight (N) = Mass (mg or g or kg) x Gravity (10 N) Example: If Susan’s mass was 60 kg., this is how I would calculate her weight: Write down formula Make sure mass is in kg Put numbers into formula Solve for weight Always units! W= M x G W= 60 kg x 10 N W= 600 N Example: If a penguin has a weight of 310 N… this is how I would calculate its mass: Write down formula Put numbers into formula Solve for mass Always write units W= M x G 310 N= M X 10 N 310N/ 10 N = M M= 31 kg Questions: Rose has a weight of 215 N . What is her mass? Jack has a mass of 85000g. What is his weight?
jan_22nd-_discovering_mass_and_weight_ws.docx