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What is an order-of-magnitude estimate for the mass of a soccer ball? (in kg)

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Important Questions on Measurement and Uncertainties

EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 15
A white dwarf star has a mass about that of the Sun and a radius about that of the Earth. Give an order-of-magnitude estimate of the density of a white dwarf.
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 16
A sport car accelerates from rest to 100km per hour in 4.0s. What fraction of the acceleration due to gravity is the car's acceleration?
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 17
Give an order-of-magnitude estimate for the number of electrons in your body.
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 18
Give an order-of-magnitude estimate for the ratio of the electric force between two electrons 1m apart to the gravitational force between the electrons.
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 19
The frequency f of the oscillation of the mass m attached to a spring constant k is related to m and k. by writing f = amxky and matching units both sides, show thatf = ckm, where c is dimensionless constant.
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 20
A block of mass 1.2kg is raised at a vertical distance of 5.55m in 2.450s. Calculate the power delivered. (in W)
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 21
Find the kinetic energy of a block of mass 5.00 kg moving at a speed of 12.5 m/s. (in J)
EASY
Diploma
IMPORTANT
Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 22

Without using a calculator, estimate the value of the following expression. Then compare your estimate value found using a calculator.

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