An object at rest stays at rest according to Newton's First Law.
True
Match the concept with its definition:
Inertia ↔️ Resistance to changes in motion
State of Rest ↔️ An object not moving
Uniform Motion ↔️ Movement at a constant speed in a straight line
External Force ↔️ A force acting from outside
Objects on a table remain at rest unless someone moves them due to inertia.
True
What force slows down a rolling ball according to Newton's First Law?
Friction and air resistance
Match the term with its definition according to Newton's Second Law:
Force ↔️ Measured in Newtons (N)
Mass ↔️ Measured in kilograms (kg)
Acceleration ↔️ Measured in m/s^2
The greater the force, the greater the acceleration of an object.
Uniform motion refers to movement at a constant speed in a straight line.
True
What is the tendency of an object to resist changes to its state of motion called?
Inertia
A rolling ball continues to move until friction and air resistance slow it down.
What forces act on a rolling ball to slow it down?
Friction, Air Resistance
What does Newton's Second Law state mathematically?
F=ma
The greater the force, the greater the acceleration for the same mass.
What happens to the acceleration of an object if the force acting on it is increased while the mass remains constant?
Increases
What does Newton's Third Law state?
Equal and opposite reaction
If the mass of an object increases, its acceleration will decrease, assuming the force remains constant
What are the characteristics of the forces in Newton's Third Law?
Equal magnitude, opposite direction
The reaction force has the same magnitude but acts in the opposite direction to the action force.
True
Newton's First Law of Motion is also known as the law of inertia
Match the term with its definition:
Inertia ↔️ Tendency to resist motion changes
State of Rest ↔️ Object not moving
Uniform Motion ↔️ Movement at constant speed in a straight line
External Force ↔️ Force from outside the object
A car moving at a constant speed continues to do so until friction or braking force acts upon it.
True
What is the formula for Newton's Second Law?
F=ma
For the same force, the greater the mass of an object, the smaller its acceleration
Match the term with its relationship in Newton's Second Law:
Force ↔️ Directly proportional to acceleration
Mass ↔️ Inversely proportional to acceleration
Acceleration ↔️ Inversely proportional to mass
Force is directly proportional to both mass and acceleration
What is the mathematical expression for Newton's Second Law?
F=ma
Mass is inversely proportional to acceleration when force is constant.
True
What does Newton's Third Law state?
Action and reaction are equal
Give an example of Newton's Third Law involving a rocket launch.
Rocket pushes gases down, gases push rocket up
Order the examples of Newton's Third Law from least to most complex.
1️⃣ Book resting on a table
2️⃣ Person pushing a wall
3️⃣ Person walking
4️⃣ Rocket launching
An object at rest will remain at rest unless acted upon by an external force.
True
What is the relationship between force and acceleration in Newton's Second Law?
Directly proportional
Newton's Third Law states that action and reaction forces have the same magnitude but act in opposite directions.
True
Newton's First Law is also known as the law of inertia
An object in motion continues moving at a constant speed in a straight line unless acted upon by an external
Give an example of Newton's First Law involving a rolling ball.
Continues until friction stops
When a car brakes, the coffee in a cup spills forward due to inertia
Why does a car at constant speed continue to move until the brakes are applied?
Friction from tires
Books on a table remain at rest due to gravity and a support force.
Newton's Second Law states that force equals mass times acceleration.
True
Newton's First Law of Motion, also known as the law of inertia, states that an object remains in its state of rest or uniform motion unless acted upon by an external force.