Newton's 2nd Law of Motion

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

• True
• False

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NGSS.MS-PS2-2

The SI units for force are...

• Kilograms
• Newtons
• Meters per second
• Pounds

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NGSS.HS-PS2-1

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-PS2-2

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.

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NGSS.MS-PS2-2

A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?

• His direction changed.

• His direction was unchanged.

• His velocity increased.

• His velocity decreased.

Acceleration is caused by a force acting on a mass.

• Newton’s first law of motion
• Newton’s second law of motion
• Newton’s third law of motion

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NGSS.MS-PS2-2

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.

• The one with a mass of .52 kg will have the greatest acceleration.

• They will both accelerate at the same rate.

Tags

NGSS.MS-PS2-2

A 20 kg bike accelerates at 10 m/s². what was the force?

F = m x a

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-2

A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 

• 18N left
• 18N right
• 2N right
• 2N left

Tags

NGSS.MS-PS2-2

If net force acting on object is 0, then the force is considered to be..

• Balanced
• Unbalanced
• Equal in Direction
• Distance/Time