Unit 3: Interactions of Force

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right
• 10 N left
• 60 n right
• 50 N left

Tags

NGSS.MS-PS2-2

A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

• Balanced Forces, Constant Speed
• Balanced Forces, Acceleration
• Unbalanced Forces, Constant Speed
• Unbalanced Forces, Acceleration

Tags

NGSS.MS-PS2-2

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the resultant force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of these is evidence that an unbalanced force is acting on an object?

• The mass of the object is changing

• The object remains at rest.

• The motion of the object is changing

• The object continues moving in a straight line at constant velocity.

Tags

NGSS.MS-PS2-2

If a force causes an object to start moving, stop moving, or change direction it's considered a(an)__________________force.

• Balanced
• Unbalanced
• Magnetic
• Gravitational

Tags

NGSS.MS-PS2-2

The table provides definitions for four kinds of forces. Which option matches each force with its correct position in the table?

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

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

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

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

Look at the image. 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-PS2-2

NGSS.MS-PS2-4

Newton's Third Law States...

• Objects in motion stay in motion and objects at rest stay at rest
• Force is equal to mass times acceleration
• For each action there is an equal and opposite reaction

Tags

NGSS.MS-PS2-1