Part 7 Midterm
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A skydiver jumps from a high-flying plane. As her velocity of fall increases, her acceleration
decreases
A clerk can lift containers a vertical distance of 1 m, or roll them up a 2-m-long ramp to the same elevation. With the ramp, the applied force needed is
half as much
If the radius of the Earth somehow decreased with no change in mass, your weight
increase
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has the same
none of the above
A photovoltaic cell receives energy input primarily by
radiation
Weight can be simulated in a space vehicle if the vehicle is
rotating
The distinction between impulse and force involves the
time the force acts
