

Weight
Presentation
•
Science
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2nd Grade
•
Practice Problem
•
Medium
Carolyn Nisbet
Used 19+ times
FREE Resource
12 Slides • 12 Questions
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Weight, Mass and Gravity

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Open Ended
Starter: you place an object on a set of scales. The scales read 8kg. 8kg is the objects...
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Mass
Mass is the amount of matter there is in an object
It is measured in kilograms which is often shortened to Kg (this should give you a clue for your starter task)
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Weight
Weight is a force.
The unit of weight is the newton, N.
Weight occurs due to gravity.
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What is gravity?
Gravity pulls everything towards the centre of a mass
Gravity is measured in N/Kg
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Larger objects have a greater gravitational field strength.
The gravitational field strength on Earth is 10 N/Kg
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Larger planets will have a larger gravitational field strength.
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Multiple Choice
Which planet will have the greatest gravitational field strength?
Mercury
Earth
Jupiter
Neptune
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Multiple Choice
Which planet will have the smallest gravitational field strength?
Mercury
Earth
Jupiter
Neptune
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Multiple Choice
The gravitational field strength on Earth is 10N/Kg. Which of the following could be the gravitational field strength of Saturn?
9N/Kg
10N/Kg
11N/Kg
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Mass will stay the same no matter what planet you are on.
However, as weight is dependent on gravity it will change depending on what planet you are on.
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example 1
Max is stood on Earth (gravitational field strength=10N/Kg) and has a mass of 50Kg. What is his weight?
W= 50×10
W=500N
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Max then flies to Mars which has a gravitational field strength of 4N/Kg. What is his new weight?
W=m×g
W= 50×4
W= 200N
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Multiple Choice
Max (50Kg) then travels to Venus which has a gravitational field strength of 9N/Kg. What is his new weight?
9N
50N
450N
500N
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Multiple Choice
Which of the following is measured in Newtons?
Mass
Weight
Gravity
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Multiple Choice
Which of the following is measured in Kg?
Mass
Weight
Gravity
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Multiple Choice
Which of the following is measured in N/Kg?
Mass
Weight
Gravity
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Multiple Choice
Which of the following stays the same no matter what planet you are on?
Mass
Weight
Gravity
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Multiple Choice
What is the gravitational field strength on Earth?
1Kg
1N/Kg
10Kg
10N/Kg
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Multiple Choice
A baby elephant has a mass of 100Kg. What is its weight on Earth?
100Kg
10N
1000N
2000N
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Poll
How confident do you feel with mass, weight and gravity.
Very confident
Confident
Not at all confident
Weight, Mass and Gravity

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