FOR 2025/2026 TESTS|MOST COMMON
QUESTIONS WITH CORRECTLY VERIFIED ANSWERS
(LATEST QUIZZES) |ALREADY A+
GRADED|GUARANTEED PASS
In order to do a positive amount of work you must - exert a force and move in the
direction of the force
driving down the road, you hit and insect. How does the force your car exerts on the insect
compare to the force the insect exerts on the car - according to newton's third law, an
object will exert an equal but opposite force back on that object. therefore the insect will exert
the same force on the car
suppose you are helping take groceries inside your house and you carry a heavy bag from the
car to the house, keeping the bag at a constant level and walking at a constant speed. during the
trip what is the work done by you on the bag? - acceleration = 0, W = 0, F = 0
Suppose Larissa throws a ball up in the air and it comes back down to the same place she threw
it from. Ignoring times when the ball is in contact with her hand, and ignoring air resistance
(friction with the air), identify the points of max/min PE, KE, Mech. Energy - max PE =
balls highest point
min PE = larissas hang
max KE = larissa's hand
min KE = highest point
max mech. energy =
min mech. energy =
Suppose Larissa throws a ball up in the air and it comes back down to the same place she threw
it from. Ignoring times when the ball is in contact with her hand, and ignoring air resistance
(friction with the air), briefly describe the energy transformation taking place as the ball rises in
the air, and also when it's falling back to earth - as the ball rises kinetic energy is being