Week 11 Practice: Newton's 3rd Law and Universal Law of Gravity

Why does a ball when thrown up in the air, not keep going?

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NGSS.MS-PS2-2

NGSS.MS-PS2-4

The amount of force needed to accelerate an object a certain speed depends on the object’s (a)   .m

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NGSS.MS-PS2-2

Which of Newton’s laws of motion explain how a rocket moves upward?

(a)  

Units of measurement for mass is​ (a)   , unit for speed is​ (b)   , the unit for acceleration is​ (c)   , and the unit for Force is the​ (d)  

• kg
• m/s
• m/s/s
• N
• liters
• joules
• pascals

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NGSS.MS-PS3-1

When a ball is dropped from a height, what happens to its kinetic energy as it falls?

• It remains constant.

• It decreases.

• It increases.

• It becomes zero.

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DOK Level 2: Skill/Concept

NGSS.MS-PS3-5

Which of the following investigations would best provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object?

• Measuring the speed of a car on a straight road.

• Observing a pendulum swing.

• Pushing a toy car with different amounts of force and measuring its acceleration.

• Dropping different objects from the same height and measuring the time taken to reach the ground.

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DOK Level 2: Skill/Concept

NGSS.MS-PS2-2

Which statement best supports the claim that gravitational interactions are attractive and depend on the masses of interacting objects?

• The gravitational force between two objects is inversely proportional to the square of the distance between them.

• The gravitational force is stronger on the Moon than on Earth.

• Two objects with larger masses will experience a stronger gravitational pull towards each other.

• Gravitational force does not affect objects in space.

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DOK Level 2: Skill/Concept

NGSS.MS-PS2-4

Which of the following best describes a model that shows different amounts of potential energy stored in a system when the arrangement of objects changes?

• A diagram showing a ball at different heights on a hill.

• A graph of a car's speed over time.

• A chart of different types of energy.

• A table listing various forces acting on an object.

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DOK Level 2: Skill/Concept

NGSS.MS-PS3-2

What evidence would best support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object?

• A car accelerating on a highway.

• A ball rolling down a hill and coming to a stop.

• A pendulum swinging back and forth.

• A light bulb turning on and off.

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DOK Level 2: Skill/Concept

NGSS.MS-PS3-5

What happens to the kinetic energy of a moving car when it comes to a sudden stop?

• It is destroyed.

• It is transferred to the brakes and surrounding air as heat.

• It remains constant.

• It is converted into potential energy.

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DOK Level 2: Skill/Concept

NGSS.MS-PS3-5