Understanding Motion in a Straight Line

What is uniform motion?

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

• Motion that varies in speed and direction.

• Motion in a circular path at varying speeds.

• Motion that involves acceleration and deceleration.

How does acceleration differ from deceleration?

• Deceleration increases speed, while acceleration decreases speed.

• Acceleration and deceleration are both terms for slowing down.

• Acceleration is the same as deceleration.

• Acceleration increases speed, while deceleration decreases speed.

What does a velocity-time graph represent?

• A velocity-time graph indicates the speed of an object at a specific moment.

• A velocity-time graph shows the distance traveled over time.

• A velocity-time graph represents acceleration as a constant value.

• A velocity-time graph shows how velocity changes over time.

Write the equation of motion for an object under uniform acceleration.

• s = 0.5u + at²

• s = ut² + 0.5a

• s = ut + 0.5at²

• s = ut + at

Explain relative motion with an example.

• Relative motion is the speed of an object in a vacuum.

• Relative motion refers to the distance between two stationary objects.

• Relative motion is the calculation of the motion of an object in relation to another object.

• Relative motion is the change in position of an object over time.

What is the acceleration due to gravity near the Earth's surface?

• 9.81 m/s²

• 9.00 m/s²

• 10.5 m/s²

• 8.0 m/s²

How do you calculate the distance traveled in uniform motion?

• Distance = Speed - Time

• Distance = Speed × Time

• Distance = Speed + Time

• Distance = Time ÷ Speed

What is the significance of the slope in a distance-time graph?

• The slope indicates the speed of the object.

• The slope shows the direction of the object.

• The slope represents the distance traveled.

• The slope indicates the time taken for the journey.

Define instantaneous velocity.

• Instantaneous velocity is the average velocity over a time interval.

• Instantaneous velocity is the velocity of an object at a specific instant in time.

• Instantaneous velocity is the total distance traveled divided by total time.

• Instantaneous velocity is the speed of an object regardless of direction.

What are the three equations of motion?

• 1. v = u + at; 2. s = ut + 0.5at²; 3. v² = u² + 2as.

• s = ut - 0.5at²

• v = u - at

• s = vt + 0.5at²