Unit 07: Forces Test Review

What is a force?

• Any push or pull on an object

• Any grab or tug on a object

• Any rest or motion of an object

• Any fall or raise or an object

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the unit of force?

• Newton (N)

• m/s

• Kilogram (kg)

• m/s^2

What tool do we use to measure forces?

• Balance

• Meterstick

• Spring scale

• Our hands

Which of the following is the correct force diagram of a box being pushed across a rough surface

• 
• 
• 
• 

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NGSS.MS-PS2-2

The total amount of force acting on an object, including direction is the:

• Contact force

• Balanced force

• Net force

• Unbalanced force

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NGSS.MS-PS2-2

Balanced or unbalanced?

• Balanced

• Unbalanced

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Name the missing force...

• Weight Force

• Friction Force

• Normal Force

• Air Resistance

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NGSS.MS-PS2-4

Newton's 1st Law states

• There are always unbalanced forces acting on objects, so objects always have a net force greater than zero

• An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force

• A net force acting on an object causes the object to accelerate in the direction of the net force

• For every force (action) there is an equal and opposite force (reaction)

Newton's 2nd Law states

• There are always unbalanced forces acting on objects, so objects always have a net force greater than zero

• An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force

• A net force acting on an object causes the object to accelerate in the direction of the net force

• For every force (action) there is an equal and opposite force (reaction)

Tags

NGSS.HS-PS2-1

Newton's 3rd Law states

• There are always unbalanced forces acting on objects, so objects always have a net force greater than zero

• An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force

• A net force acting on an object causes the object to accelerate in the direction of the net force

• For every force (action) there is an equal and opposite force (reaction)

Tags

NGSS.MS-PS2-1