NEW
Font size
WorksheetsUnit II Motion - Section III Quiz
Total questions: 16
Worksheet time: 9mins
Calculate the Net Force.
60N, Left
40N, Right
0N
60N, Right
Suppose that an astronaut throws a baseball in outer space at a location far from significant influences of gravity and air resistance. One would expect that the baseball would ____.
eventually stop since all objects ultimately "lose their steam"
eventually stop as its inertia slowly becomes used up
continue in motion with the same speed and direction
either a, b, or c -- depending on whether the astronaut continues to push it
The law of inertia (Newton's first law) applies _____.
to moving objects only
only to objects that are not moving
to both moving and nonmoving objects
A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by ____.
an unbalanced force would be required to keep the sled moving forward at constant speed
the presence of an unbalanced force (e.g., friction) can cause a moving object to stop
the presence of inertia causes it to stop
the natural tendency of any object is to ultimately stop
All objects have inertia
True
False
Mac and Tosh are arguing in the cafeteria. Mac says that if he flings the jello with a greater speed it will have a greater inertia. Tosh argues that inertia does NOT depend upon speed, but rather upon mass. Who is correct?
Mac
Tosh
Neither
Both
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a(n) ____________________.
unbalanced force
inertia
mass
balanced force
More mass = More inertia
True
False
Diagram shows a man jerking a table cloth. The glass remain on the table because of inertia. Which action increase the inertia ?
Use a rougher cloth
Use a smoother cloth
Pull the cloth with greater force
Fill the glass with more water.
Inertia is Newton's _______ Law of Motion.
First
Second
Third
