Mass vs. Weight

IN THE BLUE CORNER… WEIGHT!!! IN THE RED CORNER… MASS!!!

Create a T-chart: Mass vs. weight mass weight

ROUND 1

WEIGHT IS THE FORCE OF GRAVITY ON A MASS MASS IS HOW MUCH ‘STUFF’ SOMETHING HAS Place in your t-chart

ROUND 2

WEIGHT IS MEASURED IN NEWTONS MASS IS MEASURED IN KILOGRAMS

ROUND 3

WEIGHT CHANGES DEPENDING ON GRAVITY MASS REMAINS CONSTANT

Double check: These are the questions you should have answered in your t-chart What is it? What units is it measured in? Can it change? What is it? What units is it measured in? Can it change? MASS WEIGHT

You are now finished with your notes. The next slides will help you with your homework. Your homework is on the back of yesterdays gravity homework. When you have completed the homework turn it into the basket, then watch the videos and complete your reflection (on the last slide) If you get done before the end of class make sure you have all of yesterdays notes completed, today’s notes and your reflection because this will be graded tomorrow.

Weight = mass x gravity Gravity on Earth = 10ms-1 Calculating weight Weight = mass x gravity Gravity on Earth = 10ms-1

Jeff’s Space Journey

Jeff’s starts on Earth Jeff’s mass is 300 Kg The gravity on Earth is 10 ms-1 If weight = mass x gravity Then Jeff’s weight on Earth = 300 x 10 On Earth Jeff weighs 3000 N !! Jeff’s starts on Earth

Jeff’s mass is 300 Kg

Jeff’s goes to the Moon Jeff’s mass is 300 Kg The gravity on the Moon is 1.6 ms-1 Jeff’s goes to the Moon

Jeff’s goes to Mars Jeff’s mass is 300 Kg The gravity on Mars is 3.7 ms-1 Jeff’s goes to Mars

Jeff’s goes to Jupiter Jeff’s mass is 300 Kg The gravity on Jupiter 23 ms-1 Jeff’s goes to Jupiter

Jeff’s goes to Saturn Jeff’s mass is 300 Kg The gravity on Saturn is 9 ms-1 Jeff’s goes to Saturn

Click on the links below and watch the 2 videos Click on the links below and watch the 2 videos. If you have headphones please use them if not be respectful to your neighbors and don’t turn it up to loud. http://www.schooltube.com/video/d81c7cf0d8ecf2f322e3/Eureka!%20Episode%207%20-%20Weight%20vs.%20Mass   http://www.schooltube.com/video/41fc091d692746af9b12/Science%20Yr8%20Mass%20vs%20Weight

When you have completed BOTH sides of the worksheet and watched the videos, turn the worksheet into the basket. Now it is time to reflect on what you have learned the past two days: Reflection: look back at what you have learned the past two days: gravity, mass and weight. In your notebooks write two paragraphs (minimum 4 sentences each) about what you learned. Look back at your notes if you have to. This will be graded!