Newton's Laws of Motion Review

Explain the concept of balanced forces.

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

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

• Balanced forces are forces that do not act on an object, resulting in no motion.

• Balanced forces are forces that are always in motion, regardless of their size.

What happens to an object in motion when no net force acts on it?

• It comes to a stop immediately.

• It continues to move at a constant velocity.

• It accelerates in the direction of motion.

• It changes direction randomly.

What is Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction 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 unless acted upon by a force.

What is Newton's Third Law of Motion?

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

• An object in motion stays in motion unless acted upon by an external force.

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

• Energy cannot be created or destroyed, only transformed.

Provide an example of Newton's Third Law of Motion.

• When you jump off a small boat, the boat moves backward as you move forward.

• A ball thrown in the air will eventually come back down due to gravity.

• An object at rest will stay at rest unless acted upon by an external force.

• A car accelerates faster than a bicycle when both are pushed with the same force.

What is the effect of unbalanced forces on an object?

• Unbalanced forces cause an object to remain at rest.

• Unbalanced forces cause an object to accelerate in the direction of the net force.

• Unbalanced forces have no effect on an object's motion.

• Unbalanced forces cause an object to move in a circular path.

What is the formula for calculating force?

• Force (F) = mass (m) × acceleration (a)

• Force (F) = mass (m) + acceleration (a)

• Force (F) = mass (m) / acceleration (a)

• Force (F) = mass (m) - acceleration (a)

What does the term 'net force' mean?

• Net force is the total force acting on an object after all the forces are combined.

• Net force is the force exerted by gravity on an object.

• Net force is the force that opposes motion.

• Net force is the sum of all the forces acting on an object in one direction.

What is the relationship between force, mass, and acceleration?

• Force is the product of mass and acceleration; more force results in greater acceleration.

• Force is independent of mass and acceleration.

• Mass is the product of force and acceleration.

• Acceleration is the result of mass divided by force.

Give an example of Newton's First Law of Motion.

• A soccer ball will not move until a player kicks it.

• A car accelerates when the driver presses the gas pedal.

• A ball thrown in the air will eventually fall back down due to gravity.

• A bicycle stops when the brakes are applied.