Force

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

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

• According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

• The mass of an object is equal to the force applied to it divided by the acceleration.

• Force is the product of mass and acceleration, with no relation to the net force.

What is Force?

• A type of energy measured in Joules (J)

• A push or pull on an object resulting from the object's interaction with another object

• A measure of mass in kilograms (kg)

• A unit of speed measured in meters per second (m/s)

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)

If three women push a stalled car with a force of 425 N each, what is the total force applied?

• 850 N

• 1275 N

• 1200 N

• 1000 N

What is the acceleration of a car with a mass of 1500 kg if a total force of 1275 N is applied?

• 0.85 m/s²

• 1.25 m/s²

• 0.75 m/s²

• 1.00 m/s²

What is the acceleration due to gravity on Earth?

• 8.9 m/s²

• 9.8 m/s²

• 10.5 m/s²

• 9.0 m/s²

What is the unit of Force?

• Pound (lb)

• Newton (N)

• Kilogram (kg)

• Joule (J)

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 a net external 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 an external force.

What is the formula for calculating acceleration?

• Acceleration (a) = Force (F) / Mass (m)

• Acceleration (a) = Mass (m) / Force (F)

• Acceleration (a) = Velocity (v) / Time (t)

• Acceleration (a) = Force (F) + Mass (m)

If a 68 kg runner exerts a force of 59 N, what is the acceleration?

• 0.868 m/s²

• 1.5 m/s²

• 0.5 m/s²

• 2.0 m/s²