Newton's Laws, Forces and FBD

What makes a rolling ball stop moving?

• Gravity
• Friction
• A balanced force
• An applied force

Tags

NGSS.MS-PS2-2

Name the missing force....

• Weight force
• Normal force
• Frictional force
• Tension force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Name the missing force...

• tension force
• gravitational force
• normal force
• applied force

Tags

NGSS.MS-PS2-2

Match description with free-body diagram.

• A book is at rest on a tabletop.
• A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
• An egg is free-falling from a nest in a tree. Neglect air resistance.
• A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.

Tags

NGSS.MS-PS2-4

Match description with free-body diagram.

• A book is at rest on a tabletop.
• A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
• An egg is free-falling from a nest in a tree. Neglect air resistance.
• A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Objects tendency to resist change

• Friction
• Inertia
• Force
• Gravity

Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

Newton's First Law of Motion is also known as the Law of _____.

• Inertia
• Conservation of Mass
• Action and Reaction
• Mass and Acceleration

If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?

• the cannonball
• the baseball
• The balls land at the same time.
• the ball with the larger volume

Tags

NGSS.MS-PS2-4

A crumpled piece of paper hits the ground before a flat sheet of paper because

• the acceleration of gravity is greater on the  crumpled paper.
• there is more air resistance against the flat paper.
• the crumpled paper is more massive
• the crumpled paper is less massive.

Tags

NGSS.MS-PS2-2