Physics Common Assessment Questions 4-5

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If an object is in free fall, which force is acting upon it?

The force of inertia

The normal force

The force of gravity (correct)

The force of friction

Which statement about inertia is correct?

Inertia is the tendency of an object to resist changes in its state of motion (correct)

Inertia is directly proportional to an object's mass

Inertia is a force that opposes motion

Inertia is a measure of an object's weight

What is the relationship between mass and weight?

Mass and weight are the same thing

Weight is a measure of an object's inertia

Mass is a measure of the gravitational force exerted on an object

Weight is the force exerted on an object due to gravity, proportional to its mass (correct)

According to Newton's Second Law of Motion, what is the relationship between force, mass, and acceleration?

Force = mass x acceleration Signup and view all the answers

If an object is at rest on a frictionless surface, what force is required to keep it at rest?

No force is required Signup and view all the answers

Which of the following is NOT a unit of force?

Kilogram (kg) Signup and view all the answers

If an object is dropped from a height in a vacuum, what force initially causes its acceleration?

The force of gravity Signup and view all the answers

What is the net force acting on an object in free fall near the Earth's surface?

The force of gravity only Signup and view all the answers

If an object is at rest on a frictionless surface, what force is responsible for keeping it at rest?

Newton's first law of motion Signup and view all the answers

What is the relationship between an object's mass and its weight near the Earth's surface?

They are directly proportional Signup and view all the answers

If a rocket is launched vertically upward, what force initially causes its acceleration?

The rocket's thrust Signup and view all the answers

What is the cause of inertia in an object?

The object's mass Signup and view all the answers

What is the primary force acting on an object in free fall, where the force of air resistance is negligible?

Gravity Signup and view all the answers

An object has a mass of 6 kg on Earth. What is the weight of this object in Newtons?

$58.8$ N Signup and view all the answers

An object exerts a force of $17 , \mathrm{N}$ and accelerates at $8 , \mathrm{m/s^2}$. What is the mass of this object?

$2.13 , \mathrm{kg}$ Signup and view all the answers

What is the force that opposes the motion of a falling object and increases as the object's velocity increases?

Air resistance Signup and view all the answers

Which of Newton's laws of motion describes an object's tendency to resist changes in its state of motion?

First law Signup and view all the answers

Physics Common Assessment Questions 4-5

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