Understanding Motion Concepts

What is uniform rectilinear motion?

• Motion in a circular path at varying speed.

• Motion in a straight line at constant speed.

• Motion in a zigzag pattern at constant speed.

• Motion in a straight line with changing speed.

How does uniform motion differ from accelerated motion?

• Uniform motion involves changing speed; accelerated motion is constant speed.

• Uniform motion can only occur in a straight line; accelerated motion can only occur in curves.

• Uniform motion is constant speed and direction; accelerated motion involves changing speed or direction.

• Both uniform and accelerated motion have the same speed.

What are the effects of motion on an object?

• Motion only affects the color of an object.

• Motion has no effect on an object's position.

• Motion causes changes in position, velocity, acceleration, and can affect energy and forces acting on the object.

• Motion decreases the mass of an object.

What is the formula for calculating speed?

• Speed = Distance + Time

• Speed = Distance / Time

• Speed = Time / Distance

• Speed = Distance - Time

How do you define acceleration?

• Acceleration is the speed of an object in a straight line.

• Acceleration is the total distance traveled over time.

• Acceleration is the force applied to an object.

• Acceleration is the rate of change of velocity per unit time.

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.

Can you give an example of a straight-line motion?

• A plane flying in a loop.

• A bicycle going in circles.

• A person walking in a zigzag path.

• A car driving on a straight road.

What factors can affect the speed of an object?

• Shape of the object

• Color of the object

• Mass, force applied, friction, air resistance, and medium.

• Temperature of the object

What is a trajectory in motion?

• The path an object takes as it moves through space.

• The speed of an object at a given moment.

• The distance covered by an object in a straight line.

• The force acting on an object in motion.

How can we measure the distance traveled by an object?

• Distance can only be measured with a stopwatch.

• Distance can be measured using tools like rulers, tape measures, or GPS, or calculated using the formula distance = speed × time.

• Distance is irrelevant in physics.

• Distance can be estimated by guessing.