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Vehicles in Motion
Learning Set 1
Term | Definition |
---|---|
coast | to move without being continuously pushed or pulled |
chassis | the frame and wheels of a vehicle |
axles | round shafts that connect the opposing wheels of a car |
bearings | structures that help parts to move freely |
motion | a change in the position of an object over time |
speed | a measure of how fast an object is traveling |
force | a push or a pull |
propulsion force | a push or a pull that causes an object to move |
gravity | the force of attraction between objects; on Earth, gravity pulls objects downward to the Earth's center |
qualitative data | information describing qualities of objects observed (senses) but not measured |
quantitative data | information based on measurements or counting |
reference point | an object or location with which the position of a second object is compared over time to determine if the second object is moving |
frame of reference | the view from which you judge the motion of another object |
veer | (noun): a change in direction or course (verb): to change direction or course |