Ocean Powered: Lesson 1 REVIEW

If two forces (arrows) of the same length were pointing in the same direction on an object, would the object be moving or at rest?

• At rest, because the forces cancel each other out.

• Moving, because the forces are balanced.

• At rest, because the forces are unbalanced.

• Moving, because the forces are unbalanced.

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NGSS.MS-PS2-2

What would happen if there were less wind acting on a turbine?

• The blades would move faster.

• The blades would move more slowly or stop.

• The blades would spin in the opposite direction.

• The blades would remain unaffected.

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NGSS.MS-PS2-2

NGSS.MS-PS3-5

What happens to the motion of an object when the forces on it are balanced?

• The object will accelerate.

• The object will decelerate.

• The object's motion will be stable (the same).

• The object will change direction.

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NGSS.MS-PS2-2

How does force affect the motion of an object?

• The weaker a force, the more motion it can create.

• The stronger a force, the less motion it can create.

• The stronger a force, the more motion it can create.

• Force does not affect motion.

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NGSS.MS-PS2-2

How does an object’s mass affect its motion?

• Objects with more mass require less force to move them.

• Objects with less mass require more force to move them.

• Objects with more mass require more force to move them.

• Mass does not affect motion.

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NGSS.MS-PS2-2

What can you observe about the relationship between force and motion from the graph?

• The greater the force, the greater the acceleration.

• The greater the force, the less the acceleration.

• The greater the mass, the greater the acceleration.

• The greater the mass, the less the acceleration.

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NGSS.MS-PS2-2

What can you observe about the relationship between mass and motion from the graph?

• The greater the mass, the greater the acceleration.

• The greater the mass, the less the acceleration.

• The greater the force, the greater the acceleration.

• The greater the force, the less the acceleration.

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NGSS.MS-PS2-2

When the ball begins to move, are the forces on it balanced or unbalanced?

• Balanced

• Unbalanced

• Neutral

• Constant

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Which law is also known as the law of inertia?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of the laws

What do Newton’s laws help us understand?

• The forces that push and pull everything

• The speed of light

• The structure of atoms

• The flow of electricity

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NGSS.HS-PS2-1