1. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. 1.If the earth stopped spinning we would float into space. 2.There is no gravity on the moon. 3.NASA have an anti-gravity room where gravity can be turned off and people can float. 4.It is possible to shield the force of gravity by using lead or other materials. 5.Isaac Newton discovered gravity. 6.Nottingham Forest won the Champions league in 1979 and 1980. 7.You have no mass in space. 8.There is no gravity in space because you are far from the earth. 9.Weight is measured in kilograms. 10. There is no gravity in space because space is a vacuum. 11. If we could suck all the air out of the classroom, we would float around. Say which are true and which are false Explain which are true and which are false Justify your reasoning for which are true and which are false

2. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Learning Outcomes State the differences between weight and mass Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Learning Benefit: Explain the way in which an astronaut’s weight varies on a journey to the moon.

3. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Earth vs. Moon When astronauts walked on the Moon they weighed less than when on Earth.astronauts walked on the Moon Why do you think this happened? What happened to their mass? Size of Earth and Moon Think Share Pair

4. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Mass vs. Weight Discuss with your neighbour 1) How would you describe the weight of these astronauts? 2) Other than their location, what has changed? 3) What is needed for an object to have weight?

5. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Feather and bowling ball If I drop a feather and a bowling ball at the same time, which will hit the ground first? https://www.youtube.com/watch?v=E43-CfukEgs Say what you think will happen Describe the forces that will be on the bowling ball and feather Explain why you think what will happen using forces and their size

6. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. What is mass? Mass is different from weight! Mass is a measurement of how much of something there is. Mass is measured in grams and kilograms.

7. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Weight a minute… Weight is a measurement of force… Force is always measured in Newtons (N) Weight (N) = Mass (Kg) X Acceleration of Gravity Mass = 1000Kg Acceleration of gravity: 9.8 m/s What’s my weight? (in Newtons!)

8. Explain how to calculate weight and mass Justify why mass stays constant but weight changes throughout the universe Outcomes State the differences between weight and mass Key Words Mass Weight Gravity Learning Outcome: Know that every object exerts a gravitational force. Calculate the weight! Moon : Gravity = 1.6 Saturn : Gravity = 10.4 Mars : Gravity = 3.7 Neptune : Gravity = 11.5 Jupiter : Gravity = 24.9 Venus : Gravity = 8.8 1,600 N10,400 N 3,700 N 8,800 N 24,900 N 11,500 N