Topic Test Answers

What lever has resistance between the axis (fulcrum) and the force (effort)? A.firstB.secondC.third D.fourth

Which of the following statements about air is TRUE? A. Air is not a source of resistance. B. Air has mass, but not inertia. C. Air is not affected by human movement. D. None of these statements are true. Please select the best answer from the choices provided.

The knee has the same kind of joint as the elbow.

The elbow is considered a third class lever because __________.A.the effort is applied further from the fulcrum than the loadB.the effort is applied closer to the fulcrum than the loadC.the fulcrum is in the center of the leverD.the elbow is used to lift objects

A parachute works because the canvas of the parachute is acted upon by __________. A. air resistance B. gravity C. velocity D. momentum Please select the best answer from the choices provided.