Forces and Motion

How many contact forces are there?

• 2

• 3

• 4

• 5

• 6

What is friction?

• The force that tries to slow down a (an) object.

• Friction is the force that enhances the relative motion of two surfaces in contact.

What is impact force?

• Impact force is the force that acts on an object at rest.
• Impact force is the force experienced during a collision.

Tags

NGSS.MS-PS2-1

What is strain force?

• Strain force is the force applied externally to a material.
• Strain force is the internal force within a material due to deformation.

What is air resistance?

• Air resistance is a type of weather phenomenon.
• Air resistance is a force that opposes the motion of an object through the air.

What is water resistance?

• Water resistance is the capability of an object to resist the ingress of water.
• Water resistance is the ability to float on water.

How many non-contact forces are there?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is magnetic force?

• Magnetic force is the force exerted by magnets when they attract or repel each other.
• Magnetic force is the force that only attracts objects without repelling them.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is buoyancy force?

• Buoyancy force is the downward force exerted by a fluid on a submerged object.
• Buoyancy force is the upward force exerted by a fluid on a submerged object.

What is gravitational force?

• Gravitational force is the force that repels two masses.
• Gravitational force is the force of attraction between two masses.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5