Contact and Noncontact Forces

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-PS2-1

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

Tags

NGSS.MS-PS2-2

The sum of all forces acting on an object and direction

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

Tags

NGSS.MS-PS2-2

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
• A tossed ball is falling to the ground

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

Which is a factor that affects the strength of gravity and magnetic force fields?

• Mass
• Volume
• Distance
• Density

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

Distance and mass are two factors that affect

• Gravitational Force Fields
• Magnetic Force Fields
• Electric Force Fields
• Electrostatic Force Fields

Tags

NGSS.MS-PS2-4