Understanding Newton's Laws

What is the first law of motion?

• An object in motion will eventually come to a stop without any force.

• An object will change its motion only if it is pushed or pulled.

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

• An object at rest will start moving on its own after a while.

What does the second law of motion state?

• The second law of motion states that energy is conserved.

• The second law of motion states that an object at rest will stay at rest unless acted upon by a net force.

• The second law of motion states that for every action, there is an equal and opposite reaction.

• The second law of motion states that force equals mass times acceleration (F = ma).

What is the formula for calculating force?

• F = m * a

• F = m - a

• F = m / a

• F = m + a

What is inertia?

• Inertia is the energy stored in an object at rest.

• Inertia is the resistance of an object to changes in its motion.

• Inertia is the speed of an object in motion.

• Inertia is the force that causes an object to move.

How does mass affect acceleration?

• Acceleration is independent of mass.

• Greater mass always increases acceleration.

• Mass has no effect on acceleration.

• Mass affects acceleration inversely; greater mass results in less acceleration for a given force.

What is an example of Newton's third law?

• A person jumping off a diving board experiences no reaction from the board.

• A balloon inflating pushes air outwards.

• A person pushing against a wall experiences the wall pushing back with equal force.

• A car accelerating forward pushes against the ground.

What happens to an object at rest according to Newton's first law?

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

• An object at rest will start moving on its own.

• An object at rest will eventually fall due to gravity.

• An object at rest will change its position spontaneously.

How do action and reaction forces work?

• Action and reaction forces are equal in magnitude and opposite in direction, acting on different objects.

• Action and reaction forces act on the same object.

• Action and reaction forces are always unequal in magnitude.

• Action and reaction forces can exist without contact between objects.

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

• Acceleration is independent of mass and force.

• Mass is equal to force divided by acceleration.

• Force is equal to mass multiplied by acceleration (F = m * a).

• Force is the product of mass and velocity.

Can you give an example of a real-life application of Newton's laws?

• The flight of an airplane during takeoff.

• The behavior of a pendulum swinging back and forth.

• The operation of a car during acceleration and braking.

• The motion of a satellite in orbit.