Net force and energy test review

Non-contact force that pulls objects toward each other; affected by mass and distance

• Gravity

• Friction

• Magnetism

• Applied Force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Contact force two surfaces exert when they push or rub against each other; affected by the type of surfaces involved and how hard they are pushed

• Gravity

• Friction

• Magnetism

• Applied Force

Non-contact force that can be either a push or a pull; direction is dependent on orientation, strength and magnitude of an object

• Gravity

• Friction

• Magnetism

• Applied Force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

NGSS.MS-PS2-3

Force exerted or applied on an object by a person or another object

• Gravity

• Friction

• Magnetism

• Applied Force

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

• 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 the ground by Gravity due to the strong gravitational force of the Earth

• 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-PS2-2

NGSS.MS-PS2-4

Which of the following best describes the action and reaction of the apple falling from the tree?

• Reaction: the apple falling

• Action: Gravity pulling on the apple

• Action: The apple falling

• Reaction: gravity pulling on the apple

Tags

NGSS.MS-PS2-1

Choose all the examples that demonstrate the force of Friction

• A bike gradually rolling down a hill

• Rubbing hands together to keep warm

• Air rushing on and over a car as it speeds down the road

• A pot resting on a silicone pad to absorb heat from cooking

A box is acted upon by two forces from opposite directions. What is the net force applied to the box?

(a)  

Tags

NGSS.MS-PS2-2

A box is acted upon by two forces from opposite directions.

Is the box balanced or unbalanced?

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-2

A box is acted upon by two forces from opposite directions.

Which direction is the box moving?

• to the Left <----

• To the Right ---->

Tags

NGSS.MS-PS2-2