Part 7 Midterm

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