Understanding Motion and Time

What are the three main types of motion?

• Cyclic motion, linear acceleration, angular momentum

• Translational motion, vibrational motion, periodic motion

• Static motion, dynamic motion, gravitational motion

• Linear motion, rotational motion, oscillatory motion

Define uniform motion with an example.

• An example of uniform motion is a car traveling at a constant speed of 60 km/h on a straight highway.

• A person walking in a zigzag pattern.

• A train coming to a complete stop at a station.

• A bicycle accelerating down a hill.

What is the difference between linear and circular motion?

• Linear motion occurs in a circular path, whereas circular motion is always straight.

• Linear motion is faster than circular motion, which is always slower.

• Linear motion is straight-line movement, while circular motion is movement along a curved path.

• Linear motion involves rotation, while circular motion is straight-line movement.

How can you graph the motion of an object?

• Chart the object's color vs. time to see how it changes.

• Graph the object's position vs. time to visualize its motion.

• Plot the object's mass vs. time to understand its motion.

• Graph the object's speed vs. time to analyze its acceleration.

What does the slope of a distance-time graph represent?

• The speed or velocity of an object.

• The acceleration of an object.

• The time taken for an object to stop.

• The distance traveled by an object.

Explain what a speed-time graph shows.

• A speed-time graph represents the total time taken for a journey.

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

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

• A speed-time graph indicates the acceleration of an object.

How do you measure time accurately?

• Count the number of heartbeats in a minute.

• Use a sundial and estimate the time based on shadows.

• Use atomic clocks and synchronize with UTC.

• Rely on the position of the stars without any calibration.

What instruments are commonly used for measuring time?

• Barometers

• Clocks, watches, timers, stopwatches

• Calendars

• Thermometers

What is the formula for calculating speed?

• Speed = Distance / Time

• Speed = Distance - Time

• Speed = Time / Distance

• Speed = Distance + Time

How does acceleration differ from speed?

• Acceleration is the same as speed.

• Speed measures the distance traveled over time.

• Acceleration is a measure of an object's mass.

• Acceleration differs from speed in that speed measures how fast an object moves, while acceleration measures how quickly the object's speed changes.