What does a horizontal line on a position-time graph indicate about the object? (1 point)
The obiect has a
• constant, nonzero velocity.
• The object has a
position of zero.
o The object remains
still.
The objectis
accelerating.
The object has a constant, nonzero velocity.
A force acts on an object. Which option describes an action that could prevent the object from moving? (1 point)
a force applied in the same direction
O with a greater
magnitude at the same time
a force applied in the opposite
• direction with a greater magnitude at the same time
a force applied in the same direction
• with the same magnitudeagetheof1 same time
A force applied in the opposite direction with a greater magnitude at the same time.
Which option is the force with the greatest magnitude?
(1 point)
o the force needed to
lift a hairbrush
the force needed to
lift a pencil
o the force needed to
lift a chair
o the force needed to lift a textbook
The force needed to lift a chair.
A box is against a wall. A person pushes on the box, but the box does not move. Is this situation an example of a force? (1 point)
Yes, this is an example of a force
• because gravity is pulling the box down.
No, this is not an o example of a force because a force pulls an object.
No, this is not an o example of a force because the box did not move.
Yes, this is an example of a force because gravity is pulling the box down.
Which situation describes a non-contact force changing the speed of an object? (1 point
a bicycle
• accelerating as the
rider pedals more quickly
a ball accelerating
• as it rolls down a hill
a gust of wind
• blowing a leaf away
a drawer opening
O when a user pulls the hand Sage
A ball accelerating as it rolls down a hill.
In which situation would the momentum of a moving object increase? (1 point)
Mark as Complete (
Two forces of equal magnitude act on
• the object in opposite directions.
A force acting in the direction o opposite the obiect's motion is removed from the object.
A new force acts
O on the object,
opposing the
obiect's motion.