MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.
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Transcript of MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.
![Page 1: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/1.jpg)
MASS AND WEIGHT
![Page 2: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/2.jpg)
Mass is the amount of material in an object.
MASS AND WEIGHT
![Page 3: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/3.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is.
MASS AND WEIGHT
![Page 4: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/4.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)
MASS AND WEIGHT
![Page 5: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/5.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’
MASS AND WEIGHT
![Page 6: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/6.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’Weight of an object is the force with which the object
pushes down on whatever it is resting on.
MASS AND WEIGHT
![Page 7: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/7.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’Weight of an object is the force with which the object
pushes down on whatever it is resting on. Weight is caused by gravity pulling an object
downwards.
MASS AND WEIGHT
![Page 8: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/8.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’Weight of an object is the force with which the object
pushes down on whatever it is resting on. Weight is caused by gravity pulling an object
downwards.
MASS AND WEIGHT
![Page 9: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/9.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’Weight of an object is the force with which the object
pushes down on whatever it is resting on. Weight is caused by gravity pulling an object
downwards.The gravity force of an object is often called the
weight force because they both have the same size.
MASS AND WEIGHT
![Page 10: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/10.jpg)
Mass is the amount of material in an object.Mass stays the same WHEREVER the object is. Mass is measured in kilograms (kg) or grams (g)People should say their ‘mass is 55kg’ rather than
their ‘weight is 55kg’Weight of an object is the force with which the object
pushes down on whatever it is resting on. Weight is caused by gravity pulling an object
downwards.The gravity force of an object is often called the
weight force because they both have the same size. Weight is measured in Newtons
MASS AND WEIGHT
![Page 11: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/11.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
MASS & WEIGHT
![Page 12: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/12.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
This is because weight is calculated by multiplying mass by g – the strength of gravity.
MASS & WEIGHT
![Page 13: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/13.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
This is because weight is calculated by multiplying mass by g – the strength of gravity.
The value of g (gravity) Is 10 Newtons per kilogram (10kg -1) on the surface of the earth.
MASS & WEIGHT
![Page 14: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/14.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
This is because weight is calculated by multiplying mass by g – the strength of gravity.
The value of g (gravity) Is 10 Newtons per kilogram (10kg -1) on the surface of the earth.
This means that every kg of mass pushes down with a weight of 10N.
MASS & WEIGHT
![Page 15: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/15.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
This is because weight is calculated by multiplying mass by g – the strength of gravity.
The value of g (gravity) Is 10 Newtons per kilogram (10kg -1) on the surface of the earth.
This means that every kg of mass pushes down with a weight of 10N.
Weight = mg Where: g is 10N kg-1m is mass, in kg
MASS & WEIGHT
![Page 16: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/16.jpg)
The weights on the table shows (or should show) that weight (in N) is always ten times the mass (in kg)
This is because weight is calculated by multiplying mass by g – the strength of gravity.
The value of g (gravity) Is 10 Newtons per kilogram (10kg -1) on the surface of the earth.
This means that every kg of mass pushes down with a weight of 10N.
Weight = mg Where: g is 10N kg-1m is mass, in kg
MASS & WEIGHT
![Page 17: MASS AND WEIGHT. Mass is the amount of material in an object. MASS AND WEIGHT.](https://reader036.fdocuments.us/reader036/viewer/2022062421/56649d825503460f94a67b64/html5/thumbnails/17.jpg)
1. Anne buys a bag of bananas. The shop assistant tells her that they ‘weigh 3kg’.
a) Calculate the actual weight of the bananasb) One of the bananas has a mass of 150g. What is its
actual weight?2. Calculate the weight of the following:c) A 105kg rugby playerd) A 50kg sack of potatoese) A 500g container of margarine.
QUESTIONS
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3. A 15kg rock is dislodged from a cliff and falls to the ground below.a) Calculate the force of gravity pulling the rock
downwardsb) What is the force of the rock on the ground at the
foot of the cliff after it has landed?
QUESTIONS
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In pairs, get a force meter and use the weights to find out mass and weight. Remember!!! You must convert the mass into kg…
COMPLETE THE TABLE FROM THE PRACTICAL
Mass (kg) Weight (N)
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Draw up a graph showing your results.
NOW USING YOUR DATA
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What does the table show about the relationship between the objects’ mass and the objects’ weight?
QUESTIONS