The measure of gravitational force exerted on an object is called? - weight , What is the rate of free-fall acceleration? - 9.8 m/s2, What is the formula for determining weight? - Weight = mass X free-fall acceleration (1 pound = .4535923 kg), What would your weight on the moon be? Why? - ??? Your weight (kg)/9.81 X 1.622, The amount of matter in an object is called? - mass, What is the difference between mass and weight? - Mass does not change due to location, weight can change due to location, Gravity increases as what else increases? - Masses of two objects, Gravity decreases as what also increases? - Distance between the two objects, What two forces are constantly acting on objects on Earth? - Air resistance and gravity, Explain what terminal velocity is: - Constant velocity of a falling object when the force of gravity and air resistance are equal, What is the name we give the curved path a projectile follows when near the surface of the Earth? - Projectile motion, Give an example projectile motion: - Shooting an arrow or throwing a ball, Give an example of orbital motion: - Moon orbiting the earth, What causes orbiting? - Gravity, Why do you weigh less on the moon? - Is much less gravity ,

12.2 Gravity

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