Directions: On this worksheet you will examine the properties of gravitational forces and fields.

omit Question 1  Two masses, 2 kg and 7 kg, initially at rest, are both released and fall freely to the ground. Which mass would experience the greater acceleration while falling? 7 kgboth masses experience the same acceleration2 kg omit Question 2  When initially released, which mass experienced the greater gravitational force of attraction to the earth? 7 kgboth masses experience the same gravitational force of attraction2 kg omit Question 3  When initially released, which mass weighed more in the earth's gravitational field? both masses weighed the same7 kg2 kg omit Question 4  If when both masses impact the earth their centers land 2.849 meters apart, what is the gravitational force exerted on the small mass by the larger mass? 4.11 x 10-11 N7.4 x 10-11 N2.88 x 10-11 N1.15 x 10-10 N omit Question 5  On the surface of Planet X a 37-kg mass weighs 1269.1 N. What is the local value of Planet X's gravitational field strength? 0.029 N/kg34.3 N/kg24.5 N/kg129.5 N/kg omit Question 6  If Planet X has the same radius as the Earth, what is the mass of Planet X? If needed, the mass of the Earth is 5.98 x 1024 kg. 1.71 x 1024 kg2.05 x 1026 kg2.09 x 1025 kg2.01 x 1027 kg omit Question 7  If the 37-kg mass is moved to a position which is 7.7 radii above the surface of Planet X, how will its weight be affected? its weight will be increased by a factor of 5929 / 100its weight will be decreased by a factor of 10 / 77its weight will be decreased by a factor of 100 / 5929its weight will be increased by a factor of 77 / 10 omit Question 8  When released from rest an object in freefall and tracked by a motion detector, which of the following position-time graphs will be displayed? omit Question 9  When released from rest an object in freefall and tracked by a motion detector, which of the following velocity-time graphs will be displayed?

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