Contact and Non-Contact Forces

Which is the correct diagram?

• Left Boat
• Right Boat

Tags

NGSS.MS-PS2-4

What is force?

• A push exerted on an object
• A push or pull exerted on an object
• A pull exerted on an object
• Nothing

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Forces that have a net force of zero ( the object is still).

• Balanced force
• Unbalanced force

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Tags

NGSS.MS-PS2-2

A force that acts where two objects touch

• Contact Force
• Non-contact Force
• Balanced Force
• Unbalanced Force

A force acting in the opposite direction of an object in motion

• Gravity
• Buoyant
• Friction
• Normal

The sum of all forces acting on an object and direction

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

Tags

NGSS.MS-PS2-2

A soft metal core that becomes magnetic when an electric current  passes through coils around the core

• Magnet
• Electromagnet
• Electricity
• Copper Wire

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following is an example of a contact force?

• A magnet picking up safety pins
• The moon orbiting Earth
• Wind blowing leaves across the yard

Which statement is true about magnetic forces?

• Distance does not affect the strength of the force field
• The charge of the magnet affects the strength of the force field.
• There is an east pole and west pole to every magnet
• Distance and the strength of the magnet affect the strength of the force field

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5