Understanding Uniform Linear Motion

What is the definition of linear motion?

• Linear motion refers to the circular movement of an object.

• Linear motion is the oscillation of an object back and forth.

• Linear motion describes the random movement of particles in a gas.

• Linear motion is the movement of an object along a straight line.

Explain the concept of uniform motion.

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

• Uniform motion involves changing speed in a circular path.

• Uniform motion refers to motion that varies in speed and direction.

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

What are Newton's laws of motion?

• Newton's three laws of motion are: 1) Law of inertia, 2) Law of acceleration, 3) Law of action and reaction.

• Law of gravity

• Law of thermodynamics

• Law of conservation of energy

How does Newton's first law apply to linear motion?

• An object in motion will accelerate indefinitely without external forces.

• An object in linear motion will remain in motion at a constant velocity unless acted upon by an external force.

• An object at rest will start moving on its own without any force.

• An object in linear motion will eventually stop without any force.

What is the formula for calculating acceleration?

• a = v_i / t

• a = v_f + v_i

• a = (v_f - v_i) / t

• a = (v_f * v_i) + t

Define constant acceleration in linear motion.

• Constant acceleration is when an object moves at a constant speed without changing direction.

• Constant acceleration occurs only in circular motion.

• Constant acceleration occurs when the rate of change of velocity is uniform over time in linear motion.

• Constant acceleration means the velocity is decreasing over time.

What is the relationship between speed and velocity?

• Speed is a scalar; velocity is a vector that includes direction.

• Speed includes direction, while velocity does not.

• Speed and velocity are the same thing.

• Velocity is a scalar; speed is a vector.

How do you calculate the distance traveled in uniform motion?

• Distance = Speed × Time

• Distance = Speed - Time

• Distance = Speed + Time

• Distance = Time ÷ Speed

What does a velocity-time graph represent?

• The acceleration of an object at a given time.

• The force acting on an object at different times.

• The distance traveled by an object over time.

• The relationship between an object's velocity and time.

What does a horizontal line on a velocity-time graph indicate?

• Acceleration is increasing over time.

• Constant velocity with no acceleration.

• Variable velocity with constant acceleration.

• No movement or velocity change.