Understanding Newton's Second Law

What is the SI unit of force?

• Joule

• Newton

• Watt

• Pascal

Which equation correctly represents Newton’s Second Law of Motion?

• F = m + a

• F = m × a

• F = m/a

• F = a - m

What is the acceleration of a 2 kg object when a 10 N force is applied to it?

• 5 m/s^2

• 20 m/s^2

• 0.2 m/s^2

• 12 m/s^2

Tags

NGSS.MS-PS2-2

Which of the following best describes the difference between mass and weight?

• Mass is a force, weight is a property of matter.

• Mass is measured in newtons, weight in kilograms.

• Mass is the amount of matter, weight is the force due to gravity.

• Mass changes with location, weight does not.

Tags

NGSS.MS-PS2-4

A 5 kg object is at rest. What is its acceleration if no net force acts on it?

• 5 m/s^2

• 0 m/s^2

• 9.8 m/s^2

• 1 m/s^2

Tags

NGSS.MS-PS2-2

A 10 kg box is pushed with a force of 50 N. What is its acceleration?

• 0.2 m/s^2

• 5 m/s^2

• 500 m/s^2

• 10 m/s^2

Tags

NGSS.MS-PS2-2

Which of the following scenarios best illustrates Newton’s Second Law?

• A book resting on a table

• A car accelerating when the gas pedal is pressed

• A ball rolling at constant speed

• A person standing still

Tags

NGSS.MS-PS2-2

If an astronaut’s mass is 70 kg, what is their weight on Earth? (Use g = 9.8 m/s^2)

• 686 N

• 70 N

• 9.8 N

• 700 N

Tags

NGSS.MS-PS2-4

A 3 kg object is acted upon by a net force of 12 N. What is its acceleration?

• 4 m/s^2

• 36 m/s^2

• 0.25 m/s^2

• 9 m/s^2

Tags

NGSS.MS-PS2-2

Match the equations to what they're used to calculate.

• Force

• Mass

• Acceleration

Tags

NGSS.HS-PS2-1