PH 120 Forces

True or False: air friction is a non contact force.

• True

• False

When mass increases then gravity

• Decreases
• Increases
• Stays the same

Tags

NGSS.MS-PS2-4

This type of force is an attraction between two objects

• contact
• gravity
• friction

A resistance to a change in motion.

• Force

• Friction

• Inertia

• acceleration

A magician pulls a table cloth out from under dishes, demonstrates which law of motion.

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

A car comes to a screeching halt and the passengers move forwards being restrained by their seat-belts is a good example of this.

• force

• inertia

• velocity

• acceleration

Tags

NGSS.MS-PS2-2

The type of friction you overcome to "start" and object to move.

• inertia

• static

• kinetic

• energy

A rocket takes off, the gasses go in one direction and the rocket in the opposite direction. Which law does this demonstrate?

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

Tags

NGSS.MS-PS2-1

A force that opposes motion.

• inertia

• friction

• gravity

• energy

This factor determines how much inertia an object has.

• velocity

• acceleration

• charge

• mass

Tags

NGSS.MS-PS2-2