Newton's Laws: Force and Acceleration

What is the relationship between force and acceleration according to Newton's second law?

• Acceleration is independent of the force applied to an object.

• Force and acceleration are not related according to Newton's second law.

• The force acting on an object is equal to the mass of the object divided by its acceleration.

• The force acting on an object is equal to the mass of the object multiplied by its acceleration.

What is the SI unit of force?

• meter (m)

• newton (N)

• kilogram (kg)

• joule (J)

If the force acting on an object is doubled, what happens to its acceleration?

• Acceleration will stay the same

• Acceleration will be halved

• Acceleration will double

• Acceleration will be tripled

Explain Newton's first law of motion in your own words.

• An object at rest will start moving on its own

• An object in motion will slow down and stop eventually

• An object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity, unless acted upon by an external force.

• An object will change its velocity without any external force

How does mass affect the acceleration of an object when a constant force is applied?

• The acceleration decreases as the mass of the object increases.

• The acceleration increases as the mass of the object increases.

• The acceleration remains constant regardless of the mass of the object.

• The acceleration is not affected by the mass of the object.

State Newton's third law of motion.

• For every action, there is no reaction.

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

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

• For every action, there is a random reaction.

If an object has a net force of 0 N acting on it, what can you say about its acceleration?

• 10 m/s^2

• 0 m/s^2

• 5 m/s^2

• -5 m/s^2

What is the formula to calculate force using Newton's second law?

• F = ma

• F = a/m

• F = m/a

• F = mv

Give an example of a situation where an object experiences a force but does not accelerate.

• Unbalanced force

• No force applied

• Object at rest

• Balanced force

Explain the concept of inertia in relation to Newton's first law.

• Inertia is the tendency of an object to change its state of motion without any force acting on it.

• Inertia is the tendency of an object to move in a straight line at a constant speed.

• Inertia is the tendency of an object to speed up without any external force.

• Inertia is the tendency of an object to resist changes in its state of motion.