Physics Chapter on Forces and Motion

False (B)

Objects with larger mass have larger inertia.

<p>unbalanced force</p> Signup and view all the answers

<p>Newton's First Law = An object remains at rest or in uniform motion unless acted upon by a force Newton's Second Law = Acceleration is produced when a force acts on a mass Newton's Third Law = For every action, there is an equal and opposite reaction</p> Signup and view all the answers

<p>A pull or push that can change an object's motion. (B)</p> Signup and view all the answers

<p>Weight can change based on gravitational force acting on an object. (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Force is a vector quantity because it has both magnitude and direction.</p> Signup and view all the answers

<p>The object accelerates downward due to gravity.</p> Signup and view all the answers

<p>inertia</p> Signup and view all the answers

<p>Contact Forces = Forces that involve physical contact between objects Non-Contact Forces = Forces that act without physical contact Applied Force = A force that is applied directly on an object Gravitational Force = Attraction between an object and the Earth</p> Signup and view all the answers

<p>Magnetic force (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Frictional force, which resists the motion of two surfaces sliding against each other.</p> Signup and view all the answers

<p>Acceleration is directly proportional to force. (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>F = ma</p> Signup and view all the answers

<p>1</p> Signup and view all the answers

<p>9.8 m/s² (D)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>W</p> Signup and view all the answers

<p>Gravitational Force = Force acting towards the center of the earth Applied Force = Force exerted by a person or object Normal Force = Force exerted by a surface to support the weight of an object Frictional Force = Force opposing the relative motion of two surfaces in contact</p> Signup and view all the answers

A push or pull that can change the state of motion of an object, or change its shape or size.

Anything that causes an object to accelerate, which means to change its velocity (speed or direction).

Forces that involve physical contact between objects, like pushing a door or pulling a wagon.

Forces that act upon objects without direct contact, like gravity pulling you down.

The tendency of an object to resist changes in its state of motion. An object at rest wants to stay at rest, and an object in motion wants to stay in motion.

An object at rest will stay at rest, and an object in motion will stay in motion at a constant speed and direction unless acted upon by an unbalanced force.

The force that opposes the motion of one surface sliding over another.

A force that acts perpendicular to a surface, like the force a table exerts on a book.

A reference frame where an object at rest remains at rest and an object in motion continues in motion with constant velocity, unless acted upon by a force.

A measure of an object's resistance to changes in its motion. The more massive an object, the harder it is to accelerate or decelerate.

The force of gravity acting on an object. It can change depending on the gravitational field.

Newton's First Law of Motion states that an object at rest remains at rest, and an object in motion continues in motion with constant velocity, unless acted upon by a force.

Newton's Second Law of Motion states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

The overall effect of all the forces acting on an object. It determines the object's acceleration.

The force exerted on an object due to gravity. It is equal to the mass of the object multiplied by the acceleration due to gravity.

The acceleration due to gravity, a constant value of approximately 9.8 m/s² on Earth's surface, directed towards the Earth's center.

The standard unit of force in the International System of Units (SI).

For every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object exerts an equal and opposite force back on the first object.