Which of the following best describes Newton's First Law of Motion?

• An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

• The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

• For every action, there is an equal and opposite reaction.

• The force of gravity acts between all masses.

Mathematical Equivalence

ON

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NGSS.HS-PS2-1

A car is moving at a constant speed on a straight road. Which of Newton's laws explains why the car continues to move at this speed?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Universal Gravitation

Which type of force is responsible for keeping a satellite in orbit around the Earth?

• Tension force

• Gravitational force

• Frictional force

• Normal force

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NGSS.HS-ESS1-4

NGSS.HS-PS2-4

A 10 kg object is subjected to a net force of 50 N. What is the acceleration of the object?

Mathematical Equivalence

ON

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NGSS.HS-PS2-1

What forces are acting on a book resting on a table?

• Gravitational force

• Normal force

• Tension

• Friction

• Applied force

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NGSS.MS-PS2-4

Which of the following statements is true according to Newton's Second Law of Motion?

• The net force acting on an object is equal to the product of its mass and acceleration.

• The net force acting on an object is equal to the sum of all forces acting on it.

• The net force acting on an object is equal to the difference between its weight and mass.

• The net force acting on an object is equal to the gravitational force acting on it.

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NGSS.HS-PS2-1

A 2 kg block is pushed with a force of 10 N across a surface with a frictional force of 2 N. What is the acceleration of the block?

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NGSS.HS-PS2-1

Explain how Newton's Third Law of Motion applies to the motion of a swimmer pushing against the water.

• The swimmer's push on the water creates a reaction force that propels them forward.

• The swimmer's push on the water decreases their speed.

• The swimmer's push on the water increases the water's temperature.

• The swimmer's push on the water has no effect on their motion.

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NGSS.MS-PS2-1

Which of the following is not a type of force?

• Gravitational force

• Electromagnetic force

• Nuclear force

• Thermal force

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