Exploring the Concepts of Motion

What is Newton's First Law of Motion?

• An object will remain in motion until it collides with another object.

• An object will remain at rest or in uniform motion unless acted upon by an external force.

• An object will accelerate if no force is applied.

• An object will change direction only when a force is applied.

State Newton's Second Law of Motion and its formula.

• F = m/a

• F = ma

• F = m^2a

• F = mv

What does Newton's Third Law of Motion state?

• For every action, there is a proportional reaction.

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

• The force of an object is equal to its mass times its velocity.

• An object at rest stays at rest unless acted upon by a force.

Define translational motion and give an example.

• Translational motion is the rotation of an object around an axis. Example: A spinning top.

• Translational motion is the movement of an object from one place to another. Example: A car driving down a straight road.

• Translational motion is the change in an object's shape. Example: A balloon being inflated.

• Translational motion refers to the vibration of an object in place. Example: A phone vibrating on a table.

What is rotational motion? How does it differ from translational motion?

• Rotational motion is the same as translational motion.

• Rotational motion is the movement around an axis, while translational motion is movement from one place to another.

• Rotational motion is linear movement along a straight path.

• Translational motion involves spinning around a point.

Explain the concept of uniform motion.

• Uniform motion is when an object accelerates in a straight line.

• Uniform motion involves changing speed in a circular path.

• Uniform motion is motion at a constant speed in a straight line.

• Uniform motion refers to motion that occurs only in reverse.

What is the difference between speed and velocity?

• Speed is scalar; velocity is vector (includes direction).

• Speed is always greater than velocity.

• Velocity measures distance only, not direction.

• Speed can be negative while velocity cannot.

Describe uniform circular motion and its characteristics.

• Uniform circular motion involves changing speed and direction.

• Uniform circular motion occurs in a straight line at varying speeds.

• Uniform circular motion is the motion of an object in a circular path at a constant speed, characterized by constant radius, changing velocity, and centripetal acceleration.

• Uniform circular motion is characterized by a constant velocity and no acceleration.

What is the centripetal force in uniform circular motion?

• Centripetal force is the frictional force that prevents slipping on a flat surface.

• Centripetal force is the net force directed towards the center of the circular path.

• Centripetal force is the gravitational force acting on an object in free fall.

• Centripetal force is the force that opposes motion in a circular path.

Define projectile motion and its key components.

• Projectile motion is the motion of an object that is stationary and not influenced by any forces.

• Projectile motion only occurs in a vacuum without air resistance.

• Projectile motion is the motion of an object thrown into the air, characterized by its trajectory influenced by gravity, with key components being initial velocity, angle of projection, acceleration due to gravity, and time of flight.

• The key components of projectile motion are mass, shape, and color.