Observing Motion Patterns - 3rd Grade Science
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What does a horizontal line on a distance-time graph indicate about motion?
What does a horizontal line on a distance-time graph indicate about motion?
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The object is at rest (distance stays the same). No vertical change means no motion.
The object is at rest (distance stays the same). No vertical change means no motion.
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What is the definition of motion in science?
What is the definition of motion in science?
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Motion is a change in an object's position over time. Position changes show movement happening.
Motion is a change in an object's position over time. Position changes show movement happening.
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What is the definition of speed for a moving object?
What is the definition of speed for a moving object?
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Speed is how fast an object moves over time. Measures distance covered per unit time.
Speed is how fast an object moves over time. Measures distance covered per unit time.
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Which tool is most appropriate for measuring time in a motion investigation?
Which tool is most appropriate for measuring time in a motion investigation?
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A stopwatch or timer. Measures elapsed time accurately.
A stopwatch or timer. Measures elapsed time accurately.
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Which tool is most appropriate for measuring distance moved by an object?
Which tool is most appropriate for measuring distance moved by an object?
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A ruler, meter stick, or measuring tape. Measures length or distance traveled.
A ruler, meter stick, or measuring tape. Measures length or distance traveled.
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What is a motion pattern when an object moves the same distance in equal times?
What is a motion pattern when an object moves the same distance in equal times?
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Constant (steady) speed. Equal distances in equal time intervals.
Constant (steady) speed. Equal distances in equal time intervals.
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What is a motion pattern when an object moves more distance each equal time interval?
What is a motion pattern when an object moves more distance each equal time interval?
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Speeding up (accelerating). Distance increases more each interval.
Speeding up (accelerating). Distance increases more each interval.
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What is a motion pattern when an object moves less distance each equal time interval?
What is a motion pattern when an object moves less distance each equal time interval?
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Slowing down (decelerating). Distance increases less each interval.
Slowing down (decelerating). Distance increases less each interval.
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What does it mean if an object's position does not change over time?
What does it mean if an object's position does not change over time?
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The object is at rest (not moving). No position change means no movement.
The object is at rest (not moving). No position change means no movement.
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What does it mean if an object changes direction during motion?
What does it mean if an object changes direction during motion?
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Its motion is not straight; direction changes over time. Path curves or turns during movement.
Its motion is not straight; direction changes over time. Path curves or turns during movement.
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Which option describes the pattern: $0,\text{m}, 2,\text{m}, 4,\text{m}, 6,\text{m}$ each second?
Which option describes the pattern: $0,\text{m}, 2,\text{m}, 4,\text{m}, 6,\text{m}$ each second?
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Constant speed. Moves $2\text{m}$ every second consistently.
Constant speed. Moves $2\text{m}$ every second consistently.
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Which option describes the pattern: $0,\text{m}, 1,\text{m}, 3,\text{m}, 6,\text{m}$ each second?
Which option describes the pattern: $0,\text{m}, 1,\text{m}, 3,\text{m}, 6,\text{m}$ each second?
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Speeding up. Distance gaps increase: $1$, $2$, $3\text{m}$.
Speeding up. Distance gaps increase: $1$, $2$, $3\text{m}$.
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Which option describes the pattern: $0,\text{m}, 4,\text{m}, 7,\text{m}, 9,\text{m}$ each second?
Which option describes the pattern: $0,\text{m}, 4,\text{m}, 7,\text{m}, 9,\text{m}$ each second?
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Slowing down. Distance gaps decrease: $4$, $3$, $2\text{m}$.
Slowing down. Distance gaps decrease: $4$, $3$, $2\text{m}$.
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Identify the motion: positions are $5,\text{m}, 5,\text{m}, 5,\text{m}, 5,\text{m}$ each second.
Identify the motion: positions are $5,\text{m}, 5,\text{m}, 5,\text{m}, 5,\text{m}$ each second.
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At rest (no motion). Position stays at $5\text{m}$ constantly.
At rest (no motion). Position stays at $5\text{m}$ constantly.
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Calculate speed: an object moves $12,\text{m}$ in $3,\text{s}$. What is its speed?
Calculate speed: an object moves $12,\text{m}$ in $3,\text{s}$. What is its speed?
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$4,\text{m/s}$. Use $\text{speed}=\frac{12\text{m}}{3\text{s}}$.
$4,\text{m/s}$. Use $\text{speed}=\frac{12\text{m}}{3\text{s}}$.
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