Question: In the human body, most of the lever systems formed by muscles pulling on bones are what class? 1st class 2nd class 3rd class None of the choices are correct
Answer: 3rd class
Question: A 30 kg child sits on the right end of a see-saw 1 m from the axis. If a 20 kg child sits on the left end of the see-saw 2 m from the axis, what will happen? The see-saw will rotate clockwise. The see-saw will rotate counterclockwise. The see-saw will balance. Need more information to predict outcome.
Answer: The see-saw will rotate counterclockwise.
Question: The resistance arm (RA) will always be longer than the force arm (FA) in what class lever? 1st class 2nd class 3rd class None of the choices are correct
Answer: 3rd class
Question: Third class lever systems favor which of the following? Speed Strength Both speed and range of motion All of the choices are correct
Answer: Both speed and range of motion
Question: A seesaw is an example of which class of lever? 1st class 2nd class 3rd class None of the choices are correct
Answer: 1st class
Question: The relative efficiency of a lever is proportional to which of the following? Mechanical advantage of the lever Length of the force arm Length of the resistance arm The amount of force needed to move the lever
Answer: Mechanical advantage of the lever
Question: When a muscle contracts at a joint, which of the following affects torque? The distance between the muscle’s attachment and the axis of rotation The angle of the joint The force generated by the muscle All of the choices are correct
Answer: All of the choices are correct
Question: Evan and Clark are the mall’s only security guards. The mall’s surveillance system is usually used 24 hours a day, seven days a week.
Answer Choices:
Clark is incapable of disabling the mall’s surveillance system.
Both Evan and Clark are capable of disabling the mall’s surveillance system.
Evan and Clark are the mall’s only security guards.
The mall’s surveillance system is usually used 24 hours a day, seven days a week.
Answer: Both Evan and Clark are capable of disabling the mall’s surveillance system.
Question: The higher the price of an antique, the greater people’s expectation that the object is rare. That, in turn, makes the antique appear more valuable.
Answer Choices:
Will likely increase people’s expectations that the antique is valuable.
Will guarantee that the antique will not sell at a profit.
Should be encouraged because it increases the likelihood that antiques will be sold.
Should be encouraged because it lessens a quality that makes that antique desirable.
Answer: Will likely increase people’s expectations that the antique is valuable.
Question: The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated life-threatening diseases such as polio, the human immune system increasingly targets other environmental substances in order to keep working properly. Allergy symptoms such as runny noses and itchy eyes result when the immune system attacks pollen that is breathed in from the air.
Answer Choices:
Immunizations often have surprising side effects.
Immunizations have been very successful in eliminating life-threatening diseases.
Viruses that once caused polio now cause allergies.
The use of immunizations has led to an increase in allergies.
Answer: The use of immunizations has led to an increase in allergies.
Question: When the title character of Iron, Lulu, is shown running away from the camera, first at a short distance away and then in the next shot several yards further away, the editor is using what technique?
Answer Choices:
Jump cut
Cross-cut
Fade out
Dissolve
Answer: Jump cut
Question: Why do silent films often seem to move faster than modern sound films?
Answer Choices:
Because filmmakers wanted to squeeze more action into less film.
Because they generally feature quicker cutting than modern films.
Because the rates of shooting and projection were not standardized.
Because audiences expected films to be a lot shorter in those days.
Answer: Because the rates of shooting and projection were not standardized.
Question: In what decade did digital sound come into use in movies?
Answer Choices:
The 1990s
The 1980s
The 1970s
The 1950s
Answer: The 1990s
Question: Moving back and forth between shots of a woman tied to railroad tracks and shots of a speeding train elsewhere on the tracks is an example of what editing technique?
Answer Choices:
Parallel editing
Continuity editing
Montage
Shot/reverse shot
Answer: Parallel editing
Question: What is the correct technical name for the music that plays in the background of a scene while the action takes place?
Answer Choices:
The score
The soundtrack
The orchestration
The sound design
Answer: The score
Question: Which of the following tasks is part of the process of film editing but not part of the process of book editing?
Answer Choices:
Ensuring that the story makes sense.
Making sure one section logically follows another.
Helping to construct the work itself.
Determining that the work holds together as a whole.
Answer: Helping to construct the work itself.
Question: What is the job of a film’s editor?
Answer Choices:
Putting his or her vision into words.
Choosing and arranging what will actually be in the scene.
Composing various images in the camera.
Choosing shots, their order, and their duration on screen.
Answer: Choosing shots, their order, and their duration on screen.
Question: Which of the following is typically true of soundtrack albums?
Answer Choices:
They reproduce the entire score.
They are only released for musicals.
They are used to promote a film commercially.
They only include material written specifically for the film.
Answer: They are used to promote a film commercially.
Question: Which of the following editing techniques helps keep screen direction constant?
Answer Choices:
Matching on action
The 180-degree rule
The Kuleshov effect
The shot/reverse shot pattern
Answer: The 180-degree rule