Physics 11

Name: ___________________________

Forces Test Section I: Multiple Choices—place responses on answer sheet provided [15] 1.

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Physics 11 4.

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Physics 11

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Physics 11 10.

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Physics 11

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Multiple Choice Answer Sheet

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Physics 11

Name: ___________________________

Section II: Extended Responses—show ALL your workings in the space provided [30] 1.

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Physics 11

Name: ___________________________

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A spring is stretched by a mass hooked to the end. The mass is 200 g and the spring constant is 7.5 N/m. How much has the spring been stretched?

Physics 11 4.

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The asteroid Ceres has a mass of 7.0 x 1020 kg and a radius of 500 km. a. What is the gravitational field strength on the surface?

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b. How much would an 85 kg astronaut weigh on Ceres?

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5.

A 55 kg student is standing on an elevator that is moving upwards at 6.0 m/s. a. What is their apparent weight while traveling upwards?

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b. As they reach the top floor the elevator decelerates at 3.0 m/s2. What is their apparent weight during this deceleration?

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