Exploring Motion and Measurements

What are the three main types of motion?

• Linear, angular, and periodic motion.

• Static, dynamic, and kinetic motion.

• Translational, rotational, and oscillatory motion.

• Uniform, accelerated, and decelerated motion.

Define uniform motion.

• Motion with varying speed in a circular path.

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

• Motion that occurs only in a vertical direction.

• Motion that involves acceleration and deceleration.

What is the difference between linear and rotational motion?

• Linear motion occurs in three dimensions, whereas rotational motion is limited to two dimensions.

• Linear motion is straight-line movement, while rotational motion is movement around an axis.

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

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

How do you measure distance accurately?

• Use calibrated measuring tools like tape measures, laser rangefinders, or GPS.

• Count steps to measure distance

• Use a ruler for all distances

• Estimate based on visual observation

What tool is commonly used to measure length?

• Caliper

• Compass

• Ruler or tape measure

• Protractor

What is the formula for calculating speed?

• Speed = Distance / Time

• Speed = Time / Distance

• Speed = Distance - Time

• Speed = Distance + Time

How is velocity different from speed?

• Velocity measures distance traveled over time, while speed does not.

• Velocity is always greater than speed.

• Velocity differs from speed in that it is a vector quantity, which includes direction, while speed is a scalar quantity that only measures how fast an object is moving.

• Speed includes direction while velocity does not.

What units are commonly used to express speed?

• joules per hour (J/h)

• meters per second (m/s), kilometers per hour (km/h), miles per hour (mph)

• grams per second (g/s)

• liters per minute (L/min)

If a car travels 100 km in 2 hours, what is its speed?

• 50 km/h

• 75 km/h

• 25 km/h

• 100 km/h

What does a distance-time graph represent?

• A distance-time graph represents the distance traveled over time.

• A distance-time graph represents time intervals only.

• A distance-time graph indicates the direction of travel.

• A distance-time graph shows speed over distance.