Questions and Answers
What is the speed of a moving car that covers 500 m in 20 sec?
Which two factors are necessary for the description of motion?
Which of the following is a correct unit for measuring speed?
If a car travels a distance of 180 km at a regular speed of 90 km/h, how many hours does it need to cover this distance?
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What is defined as the covered distance within a unit time?
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Study Notes
Motion in One Direction: Key Concepts
- Speed Calculation: A car covering 500 meters in 20 seconds has a speed of 25 km/h.
- Motion Description Factors: Two main factors necessary for describing motion are speed and time.
- Speed Measurement Units: Speed is commonly measured in meters per second (m/s) or kilometers per hour (km/h).
Scientific Terms
- Constant Speed Movement: An object that moves with uniform velocity in space is termed "uniform motion."
- Change in Position: The term describing the change in an object's position over time is "displacement."
Key Statements Completion
- Physical Quantity in Motion: Velocity is a physical quantity used to describe and compare the motion of objects.
- Distance Calculation: Distance can be calculated as speed multiplied by time (Distance = Speed x Time).
- Time to Cover Distance: A car traveling 180 km at a steady speed of 90 km/h requires 2 hours to complete the journey.
- Definition of Speed: Speed is defined as the distance traveled within a unit of time.
Real-Life Application
- Example of Motion: A car covering 150 km in 3 hours showcases speed calculation, with an average speed of 50 km/h.
- Example of Constant Speed: A train operating at a consistent 70 km/h illustrates the concept of uniform motion in transportation.
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Description
Test your knowledge on the fundamental concepts of motion with this quiz based on Unit 1: Motion in One Direction. Answer questions related to speed, measurement, and the factors that describe motion. Perfect for reinforcing your understanding of basic physics principles.
