NC 5.P.1.1/5.P.1.4 Newton’s Laws/ Predicting Motion

How can you increase the speed of a rolling object?

• By increasing the weight of the object.

• By reducing friction or increasing the slope of the ramp.

• By using a smoother surface only.

• By decreasing the height of the ramp.

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How does the direction of an unbalanced force affect an object's motion?

• The object will change direction in the direction of the unbalanced force.

• The object will move in the opposite direction of the unbalanced force.

• The object will remain at rest regardless of the unbalanced force.

• The object will accelerate in a direction perpendicular to the unbalanced force.

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NGSS.MS-PS2-2

What is the difference between mass and weight?

• Mass is the gravitational pull on an object, while weight is how much matter is in that object.

• Mass is how much matter is in an object, while weight is the gravitational pull on that object.

• Mass and weight are the same thing and can be used interchangeably.

• Mass is the amount of space an object occupies, while weight is the force exerted by gravity on that object.

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How does friction affect motion?

• Friction is a force that accelerates moving objects.

• Friction is a force that opposes motion, slowing down or stopping moving objects.

• Friction has no effect on motion.

• Friction only affects objects at rest.

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What is an unbalanced force?

• A force that causes an object to change its motion, such as its speed or direction.

• A force that acts on an object but does not change its motion.

• A force that is equal in size and opposite in direction to another force.

• A force that only affects stationary objects.

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What is Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion at a constant speed and in a straight line unless acted upon by an unbalanced force.

• An object will accelerate in the direction of the net force acting on it.

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

• An object in motion will eventually come to a stop due to friction.

What happens to an object's motion when it is acted upon by multiple forces?

• The object's motion will remain unchanged regardless of the forces.

• The object's motion will depend on the net force, which is the sum of all forces acting on it.

• The object's motion will always accelerate in the direction of the largest force.

• The object's motion will stop completely if opposing forces are equal.

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NGSS.MS-PS2-2

What does it mean for forces to be balanced?

• Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

• Balanced forces are unequal in size but act in the same direction, causing acceleration.

• Balanced forces are equal in size and direction, resulting in constant speed.

• Balanced forces are unopposed forces that cause an object to speed up.

What is the effect of gravity on falling objects?

• Gravity has no effect on falling objects.

• Gravity pulls objects toward the Earth, causing them to accelerate downward.

• Gravity causes objects to float in the air.

• Gravity only affects objects that are in motion.

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What is the relationship between speed and distance?

• Speed is the distance traveled per unit of time.

• Speed is the total distance divided by the total time taken.

• Speed is the distance covered in a straight line.

• Speed is the distance multiplied by time.