Newtons Laws

What does it mean for an object to be in equilibrium?

• An object is in equilibrium when the net force acting on it is zero, resulting in no change in motion.

• An object is in equilibrium when it is at rest and not moving at all.

• An object is in equilibrium when it is moving at a constant speed in a straight line.

• An object is in equilibrium when the forces acting on it are unbalanced.

What happens to an object when forces are balanced?

• The object accelerates in the direction of the net force.

• The object remains at rest or continues to move at a constant velocity.

• The object experiences an increase in speed.

• The object changes direction abruptly.

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What is Newton's 1st 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 2nd Law of Motion?

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

• The force acting on an object is equal to the mass of the object multiplied by its velocity. (F = mv)

• An object in motion stays in motion unless acted upon by an external force. (Newton's 1st Law)

• For every action, there is an equal and opposite reaction. (Newton's 3rd Law)

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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)

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How does friction affect motion?

• Friction increases the speed of an object.

• Friction has no effect on motion.

• Friction is a force that opposes motion, often causing an object to slow down or stop.

• Friction only affects objects in water.

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What is an example of inertia?

• A passenger lurching forward in a car when it suddenly stops.

• A ball rolling down a hill.

• A person pushing a heavy object.

• A leaf falling from a tree.

What is inertia?

• The tendency of an object to resist changes in its state of motion.

• The force that causes an object to accelerate.

• The mass of an object multiplied by its velocity.

• The energy stored in an object due to its position.

What is the significance of the net force?

• It is the total force acting on an object, determining its acceleration.

• It is the force that opposes motion.

• It is the force that acts only on stationary objects.

• It is the force that is always equal to zero.

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What is Newton's 3rd 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 force of gravity is proportional to the mass of the objects involved.

• For every force, there is a reaction force that is equal in size and opposite in direction.

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