Quarterly #2

Which option matches each force with its correct position in the table?

• 1: Gravity; 2. Friction; 3: Applied Forces; 4: Magnetism

• 1: Magnetism; 2. Gravity; 3: Applied Forces; 4 Friction

• 1: Gravity; 2. Friction; 3: Magnetism; 4. Applied Forces

• 1: Applied Forces; 2. Friction; 3. Gravity; 4. Magnetism

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Which of the following best identifies and describes the force shown?

• The apple is being pulled toward the ground by gravity due to the strong

  gravitational force of Earth.

• The apple fell from the tree and toward the ground due to friction of the wind

  pushing past the apple.

• The apple is being pulled toward Earth due to the strong magnetic pull of Earth

• The apple is being pushed toward Earth due to applied forces once it breaks

  free from the branch.

Tags

NGSS.MS-PS2-4

Match the following

• Magnetism

• Force exerted on an

  object by a person or

  another object

• Normal force

• Non-contact force that

  can be either a push or

  a pull; direction is

  dependent on

  orientation and strength

  of an object

• Applied force

• Non-contact force that

  pulls objects toward

  each other; affected by

  mass and distance

• Gravity

• Contact force exerted

  on an object that is in

  contact with a surface;

  force is perpendicular

  to the contact surface

• Friction

• Contact forces

  two surface

  exert when they

  push or rub

  against each

  other; affected

  by the type of

  surfaces

  involved and

  how hard they

  are pushed

  together.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Match the following

• Normal force

• Pushing a

  textbook across a

  desk

• Gravity

• Textbook

  sitting still

  on a desk.

• Friction

• Refrigerator

  Magnet

• Magnetism

• Textbook sliding

  across the desk

• Applied force

• Planets in

  the solar

  system

  pulled in a

  orbit

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A metal paper clip lying still on a desk is acted on by multiple forces.

When a magnet is brought close to the paper clip, it moves toward the magnet.

Select all options that identify and describe the forces acting on the paper

clip.

• Friction between the desk and paper clip causes it to stay still before the

  magnet acts upon it.

• Magnetic force between the paper clip and magnet causes the paper clip to be

  pulled toward the magnet without the need for contact

• Normal contact force between the desk and paper clip before the paper clip is

  acted on by the magnet.

• Gravitational force pulls the paper clip down toward the Earth as it rests on the

  desk due to its great mass.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Choose all the examples that demonstrate the force of friction.

• 
• 
• 
• 

The net force is ​ (a)   newtons.

• 20
• 80
• 50
• 30

Tags

NGSS.MS-PS2-2

Pick 2 answers.

• The force is balanced

• The force is unbalanced

• The system is stable

• The system is unstable

Tags

NGSS.MS-PS2-2

According to Newton's Third Law, what happens when a swimmer pushes against

the pool wall to propel themselves forward?

• The wall moves backward as the swimmer pushes against it.
• The swimmer sinks due to the force of the wall.
• The swimmer is propelled forward due to the equal and opposite force exerted by the wall.
• The swimmer remains stationary because the wall does not react.

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NGSS.MS-PS2-1

The ability to cause change is​ ​ (a)   . The energy of motion is​ (b)   , While ​ (c)   is the energy based on an objects position.

• energy
• kinetic energy
• potential energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5