Forces and Changes in Motion:
SC.5.P.13.2
David and Peter were moving a bookshelf across
the carpet in their classroom. Even though they
pushed as hard as they could, the bookshelf
would only move a few inches at a time.
Which of the following best explains what
happened as they tried to push the bookshelf?
A. The force of gravity opposed the motion of the
bookshelf.
B. The force of friction opposed the motion of the
bookshelf.
C. When they tried to push the bookshelf, air
resistance acted against them.
D. When they pushed the bookshelf, the bookshelf
pushed back with an equal and opposite force.
David and Peter were moving a bookshelf across
the carpet in their classroom. Even though they
pushed as hard as they could, the bookshelf
would only move a few inches at a time.
Which of the following best explains what
happened as they tried to push the bookshelf?
A. The force of gravity opposed the motion of the
bookshelf.
B. The force of friction opposed the motion of the
bookshelf.
C. When they tried to push the bookshelf, air
resistance acted against them.
D. When they pushed the bookshelf, the bookshelf
pushed back with an equal and opposite force.
Philip is playing tug of war with Nancy. They both
understand that to win the game of tug of war,
one player must pull the flag over their
opponent's line, but during this particular game,
the flag tied to the center of the rope is not
moving.
What is happening to the rope in this example?
A. Philip is applying more force in one direction.
B. Nancy is applying more force in one direction.
C. Philip and Nancy are applying equal forces in the
same direction.
D. Philip and Nancy are applying equal forces in
opposite directions.
Philip is playing tug of war with Nancy. They both
understand that to win the game of tug of war,
one player must pull the flag over their
opponent's line, but during this particular game,
the flag tied to the center of the rope is not
moving.
What is happening to the rope in this example?
A. Philip is applying more force in one direction.
B. Nancy is applying more force in one direction.
C. Philip and Nancy are applying equal forces in the
same direction.
D. Philip and Nancy are applying equal forces in
opposite directions.
While on a camping trip, Shane and Katie are
traveling in a boat on a river. On their trip,
the river's current carries them down the
river at a speed of 5 meters per second
(m/s). They don't need to row because the
current is carrying them in the direction
they need to go.
If no other forces are acting on the boat,
which of these statements describes the
motion of the boat as it travels downstream?
A. It speeds up.
B. It slows down.
C. It stays the same.
D. It changes direction.
While on a camping trip, Shane and Katie are
traveling in a boat on a river. On their trip,
the river's current carries them down the
river at a speed of 5 meters per second
(m/s). They don't need to row because the
current is carrying them in the direction
they need to go.
If no other forces are acting on the boat,
which of these statements describes the
motion of the boat as it travels downstream?
A. It speeds up.
B. It slows down.
C. It stays the same.
D. It changes direction.
Will and Tammy are moving a dresser. They are
arguing about which direction to move it. Will is
pushing the dresser with a force of 5 newtons
towards Tammy. Tammy is pushing the dresser
towards Will with a force of 10 newtons. What
happens to the dresser?
A. The dresser does not move.
B. The dresser moves towards Will.
C. The dresser moves towards Tammy.
D. The dresser moves towards Tammy, then back
towards Will.
Will and Tammy are moving a dresser. They are
arguing about which direction to move it. Will is
pushing the dresser with a force of 5 newtons
towards Tammy. Tammy is pushing the dresser
towards Will with a force of 10 newtons. What
happens to the dresser?
A. The dresser does not move.
B. The dresser moves towards Will.
C. The dresser moves towards Tammy.
D. The dresser moves towards Tammy, then back
towards Will.
Maria pushes with equal force on two
objects. Object 1 has twice as much mass
as Object 2. Which of the following
statements is true?
A. Both objects will remain still.
B. Object 1 will accelerate faster than
object 2.
C. Object 2 will accelerate faster than
object 1.
D. Both objects will accelerate at the same
rate.
Maria pushes with equal force on two
objects. Object 1 has twice as much mass
as Object 2. Which of the following
statements is true?
A. Both objects will remain still.
B. Object 1 will accelerate faster than
object 2.
C. Object 2 will accelerate faster than
object 1.
D. Both objects will accelerate at the same
rate.
Candice is rearranging the furniture in her
room. She has two different dressers that
are the same size. When she pushes on each
dresser, she finds that it is harder to move
Dresser A than it is to move Dresser B.
Why does Candice have to push with more
force on Dresser A than on Dresser B?
A. Dresser A weighs less than Dresser B.
B. Dresser A is larger in size than Dresser B.
C. Dresser A has more mass than Dresser B.
D. Dresser A has less volume than Dresser B.
Candice is rearranging the furniture in her
room. She has two different dressers that
are the same size. When she pushes on each
dresser, she finds that it is harder to move
Dresser A than it is to move Dresser B.
Why does Candice have to push with more
force on Dresser A than on Dresser B?
A. Dresser A weighs less than Dresser B.
B. Dresser A is larger in size than Dresser B.
C. Dresser A has more mass than Dresser B.
D. Dresser A has less volume than Dresser B.
Julian rides in her mother's car sometimes and
in her father's car other times. If it takes her
less time to travel the same distance in her
mother's car than in her father's car, which
of the following is true?
A. Her father's car is traveling at a greater
speed than her mother's car.
B. Her mother's car is traveling at a greater
speed than her father's car.
C. Both cars are traveling at the same speed
since they travel the same distance.
D. Both cars accelerate at the same rate, but
her mother's car has a greater mass.
Julian rides in her mother's car sometimes and
in her father's car other times. If it takes her
less time to travel the same distance in her
mother's car than in her father's car, which
of the following is true?
A. Her father's car is traveling at a greater
speed than her mother's car.
B. Her mother's car is traveling at a greater
speed than her father's car.
C. Both cars are traveling at the same speed
since they travel the same distance.
D. Both cars accelerate at the same rate, but
her mother's car has a greater mass.
Jonathan pushes a box on the floor and is
unable to make it move. Which of the
following is the best explanation for why
the box does not move?
A. The box has a very small mass.
B. Jonathan is pushing in the wrong
direction.
C. The mass of the box requires a greater
force to move it.
D. Friction occurs in the same direction
that Jonathan is pushing.
Jonathan pushes a box on the floor and is
unable to make it move. Which of the
following is the best explanation for why
the box does not move?
A. The box has a very small mass.
B. Jonathan is pushing in the wrong
direction.
C. The mass of the box requires a greater
force to move it.
D. Friction occurs in the same direction
that Jonathan is pushing.
If all the forces acting upon an object at
rest are balanced, what will the object do?
A. The object will stay still.
B. The object will slow down.
C. The object will accelerate.
D. The object will change position.
If all the forces acting upon an object at
rest are balanced, what will the object do?
A. The object will stay still.
B. The object will slow down.
C. The object will accelerate.
D. The object will change position.
Darryl pushes on two different boxes. Box
1 has a greater mass than Box 2. Which of
the following statements is true?
A. Equal force is needed to move the
boxes.
B. Both boxes will accelerate at the same
rate.
C. Less force is required to move Box 1
than Box 2.
D. Less force is required to move Box 2
than Box 1.
Darryl pushes on two different boxes. Box
1 has a greater mass than Box 2. Which of
the following statements is true?
A. Equal force is needed to move the
boxes.
B. Both boxes will accelerate at the same
rate.
C. Less force is required to move Box 1
than Box 2.
D. Less force is required to move Box 2
than Box 1.