Lesson Starter What is mass measured in Is
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Lesson Starter • What is mass measured in? • Is your mass different on the moon compared to the earth? Explain • What is weight? • What is weight measured in? • Is your weight different on the moon compared to the earth? Explain
Learning Intention • To use a newton balance to measure the weight of different masses • To look at the effect of acceleration on weight of a mass
Weight: Experiment • What is the weight of each of the masses? • Copy table and complete • Draw a line graph to show your results • An apple has a mass of 100 g, what is it’s weight?
Questions: Answer in sentences 1. What is meant by the mass of an object? 2. The weight of an object is ______________________________________ 3. The weight of an object is measured in _____.
What is the weight of each object?
Think. . What do you feel when. . o. You go up or down in a lift? o. You drive over a hill on the road? o. You go on a ride at a theme park?
Why do we get these sensations? 1. Hold the Newton balance still. 2. Now move the Newton balance upwards. 3. Stop it still. Now move it downwards. Write down: o When I kept the masses still the reading on the Newton balance was ____. o When I moved the masses upwards the reading on the Newton balance was _____. o When I moved the masses downwards the reading on the Newton balance was _____.
Mass and Weight • Did the mass change throughout? • Did the weight change? Why? Challenge: Can you move the masses up or down in a way that the reading on the Newton balance STAYS THE SAME!