A student is moving furniture. Even though table A and table B are the same size, table A requires more force to move. Why?(1 point)

Question

Responses

Table A has less density than table B
Table A has less density than table B

Table A has less weight than table B.
Table A has less weight than table B.

Table A has greater volume compared to table B.
Table A has greater volume compared to table B.

Table A has a greater mass than table B.

A student is investigating mass and acceleration. The student applies the same force of 40 N force to two boxes that have the same size and shape. Box 1 experiences an acceleration of 10 m/s^2 and box 2 experiences an acceleration of 5m/s^2.

The student claims that box 1 must have a smaller mass than box 2. Which argument best supports the student's claim?(1 point)
Responses

Heavier objects need greater force than lighter objects to accelerate at the same rate.
Heavier objects need greater force than lighter objects to accelerate at the same rate.

Lighter objects need less force than heavier objects to start moving but will accelerate at the same rate.
Lighter objects need less force than heavier objects to start moving but will accelerate at the same rate.

Heavier objects need less force than lighter objects to accelerate at the same rate.
Heavier objects need less force than lighter objects to accelerate at the same rate.

Lighter objects need greater force than heavier objects to start moving but will accelerate at the same rate.

wo forces act on an object. One force has a magnitude of 30N directed west, and the other force has a magnitude of 12 N directed east. What is the net force on the object?(1 point)
Responses

18N west
18N west

42 N east
42 N east

18N east
18N east

42N west

A book is resting on a table in a state of equilibrium. Which statement is true about the forces acting on the book? (1 point)
Responses

The book experiences unbalanced forces from friction, gravity and the table.
The book experiences unbalanced forces from friction, gravity and the table.

The book experiences balanced forces because the force of gravity pushing down on the book is greater.
The book experiences balanced forces because the force of gravity pushing down on the book is greater.

The force of gravity pulling down the book and the force of the table pushing up on the book are equal.
The force of gravity pulling down the book and the force of the table pushing up on the book are equal.

The book experiences unbalanced forces because the force of gravity pulling down on the book and the force of the table pushing up are equal.

The graph below depicts an object’s distance traveled over several intervals of time.




Which option correctly lists the motion of the object for each time interval?

(1 point)
Responses

interval AB → no motion

interval BC → constant speed

interval CD → no motion

interval DE → acceleration



interval AB → no motion interval BC → constant speed interval CD → no motion interval DE → acceleration

interval AB → constant speed

interval BC → acceleration

interval CD → constant speed

interval DE → no motion



interval AB → constant speed interval BC → acceleration interval CD → constant speed interval DE → no motion

interval AB → no motion

interval BC → decreasing speed

interval CD → constant speed

interval DE → acceleration



interval AB → no motion interval BC → decreasing speed interval CD → constant speed interval DE → acceleration

interval AB → constant speed

interval BC → decreasing speed

interval CD → constant speed

interval DE → increasing speed

A boy holds an apple as shown.


Why doesn’t gravity cause the apple to fall to the ground?

(1 point)
Responses

The force of his hand pushes up on the apple with equal magnitude to the force of gravity, which pulls down on the apple. The two forces are balanced, so the apple doesn't fall.
The force of his hand pushes up on the apple with equal magnitude to the force of gravity, which pulls down on the apple. The two forces are balanced, so the apple doesn't fall.

The force of his hand pushes up on the apple with greater magnitude than the force of gravity, which pulls down on the apple. The two forces are balanced, so the apple doesn't fall.
The force of his hand pushes up on the apple with greater magnitude than the force of gravity, which pulls down on the apple. The two forces are balanced, so the apple doesn't fall.

The force of his hand pushes up on the apple with greater magnitude than the force of gravity, which pulls down on the apple. The two forces are unbalanced, so the apple doesn't fall.
The force of his hand pushes up on the apple with greater magnitude than the force of gravity, which pulls down on the apple. The two forces are unbalanced, so the apple doesn't fall.

The force of his hand pushes up on the apple with equal magnitude to the force of gravity, which pulls down on the apple. The two forces are unbalanced, so the apple doesn't fall.

The spacecraft shown below weighs 6.1 million pounds. The rocket produces 7.5 million pounds of thrust.




When the spacecraft falls back to earth, a parachute helps it fall safely. Explain the forces acting during this landing.

(1 point)
Responses

The parachute’s downward force resists gravity’s downward force.
The parachute’s downward force resists gravity’s downward force.

The parachute’s upward force resists gravity’s downward force.
The parachute’s upward force resists gravity’s downward force.

The parachute’s upward force resists gravity’s upward force.
The parachute’s upward force resists gravity’s upward force.

The parachute’s downward force resists gravity’s upward force.

A student walks east 100 meters in 2 minutes. She then walks north 200 meters in 4 minutes. Which statement is true?(1 point)
Responses

Her velocity is constant because her direction is constant.
Her velocity is constant because her direction is constant.

Her velocity is constant because her speed is constant.
Her velocity is constant because her speed is constant.

Her velocity changes because her direction changes.
Her velocity changes because her direction changes.

Her velocity changes because her speed varies.

Answer 1

1. Why Table A requires more force to move:

   • Table A has a greater mass than table B.

2. Supporting the student's claim about Box 1 and Box 2:

   • Heavier objects need greater force than lighter objects to accelerate at the same rate.

3. Net force on the object with two opposing forces:

   • 18N west

4. Forces acting on a book resting on a table in equilibrium:

   • The force of gravity pulling down the book and the force of the table pushing up on the book are equal.

5. Motion of the object for each time interval:

   • interval AB → no motion; interval BC → constant speed; interval CD → no motion; interval DE → acceleration.

6. Why gravity doesn’t cause the apple to fall:

   • The force of his hand pushes up on the apple with equal magnitude to the force of gravity, which pulls down on the apple. The two forces are balanced, so the apple doesn't fall.

7. Forces acting during the spacecraft landing with a parachute:

   • The parachute’s upward force resists gravity’s downward force.

8. True statement about the student's walk:

   • Her velocity changes because her direction changes.