Newton's 1st Law

What is Newton's First Law known as? The Law of

• Friction
• Mass
• Inertia
• Gravity

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

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An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?

• slowing motion in a straight line
• accelerating motion in a straight line
• constant motion in a straight line
• constant motion in an unpredictable direction

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NGSS.MS-PS2-2

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

What is inertia?

• the force that opposes motion
• the force of attraction between 2 objects
• an object's tendency to stay in motion or to stay at rest
• a change in an object's speed and/or direction

According to Newton’s first law of motion, an object at rest that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• remain at rest

According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

If I slowly roll a ball down the hallway, why does it eventually stop?

• Because of Newton's First Law
• Friction and Air Resistance
• Inertia
• It wouldn't stop, it would keep going until it hits a wwall.

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NGSS.MS-PS2-2

Net force is a combination of all ________ acting on an object.

• forces

• speeds

• accelerations

• velocities

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Why does an 18-wheeler have more inertia than a bicycle?

• it has more mass
• it has more volume
• it is not as aerodynamic

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