Balanced & Unbalanced Forces

What is the physics term for any push or pull interaction between a system and the environment around it?

• accleration

• velocity

• speed

• force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the unit used for force?

• kilogram

• Newton

• meters

• Joule

When an object continues to move in the same direction at the same speed, we consider to the object to have:

• balanced forces

• unbalanced forces

When an object changes it motion and starts to accelerate, we consider to the object to have:

• balanced forces

• unbalanced forces

Tags

NGSS.MS-PS2-2

An object that is moving will continue to move in a straight line with constant speed, if the net force acting on that object is:

• zero

• greater than zero

Tags

NGSS.MS-PS2-2

What is the net force acting on the object?

• 20 N Right

• 40 N Right

• 20 N Left

• 40 N Left

Tags

NGSS.HS-PS2-1

Which net force below could an object moving at a constant speed have?

• 5 N

• 10 N

• 0 N

• Both 5 N & 10 N

Tags

NGSS.MS-PS2-2

An box is at rest when a person comes up and pushes the box with 5 N of force to the left. The box has 5 N of friction force in the opposite direction.

Will the box begin to move with this pushing force?

• Yes

• No

Tags

NGSS.MS-PS2-2

If this crate is in motion at a constant speed, what would be the minimum pushing force (to the left) to get the box to accelerate?

• 15 N

• 5 N

• 6 N

• 10 N

Tags

NGSS.MS-PS2-2

Pick the correct statement about forces and motion.

• For an object to move at a constant speed or accelerating it must have unbalanced forces.

• Objects moving at a constant speed have unbalanced forces while objects that are accelerating have balanced forces.

• Objects moving at a constant speed have balanced forces while objects that are accelerating have unbalanced forces.

• For an object to move at a constant speed or accelerating it must have balanced forces.

Tags

NGSS.MS-PS2-2