Metric Moves
Convert 2.5 kg to grams.
2500 g
What equation finds distance when velocity and time are known?
d = v × t
Car A goes from 0 m at 0 s to 10 m at 5 s. How far has it traveled at 3.0 s?
6.0 m
A student walks 8.0 m, then later walks 6.0 m farther. What is the total distance traveled?
14.0 m
For a prediction beyond your measured data to be useful, what must stay true about the vehicle's motion?
Its speed/velocity must remain constant, or the same motion pattern must continue.
Convert 750 mL to liters.
0.750 L (0.75 L is acceptable)
What equation finds time when distance and velocity are known?
t = d ÷ v
Vehicle Q is at 250 cm at 10 s on a straight-line graph. How far has it traveled at 8 s?
200 cm
The same trip takes 4.0 s walking, 2.0 s stopped, and 3.0 s walking. What is the total time?
9.0 s
If a vehicle changes speed after your last measured data point, what happens to a prediction based on constant speed?
The prediction becomes unreliable / may be wrong.
Convert 0.8 m to millimeters.
800 mm
A vehicle moves at 35 cm/s for 20 s. How far does it travel?
700 cm
Two straight motion lines have the same steepness. What motion quantity is the same for both objects?
Their speed / velocity magnitude
For that 14.0 m trip over 9.0 s, what is the average speed?
1.56 m/s (about 1.6 m/s)
Why are metric-to-metric conversions usually easier than inches-feet-miles conversions?
Metric units are related by powers of 10.
Convert 9,000 cm to meters.
90 m
A vehicle moves at 42 cm/s for one full minute. How far does it travel in meters?
25.2 m
A line begins above zero on the distance axis when t = 0. What does that tell you?
The object did not start at the 0 mark; it had a head start / nonzero starting position.
Was the student's velocity constant during the entire walk-stop-walk trip? Why or why not?
No. The student stopped, so the motion/velocity changed.
Which is faster: 1 m/s or 1 km/h?
1 m/s, because 1 m/s = 3.6 km/h.
Convert 1.20 m² to cm². Remember: area conversions must be squared.
12,000 cm² (1.20 × 10⁴ cm²)
Convert 2.50 m/s to miles per hour using 1 mi = 1609 m and 1 h = 3600 s.
5.59 mi/h (about 5.6 mph)
On a distance-time graph, what does the steepness tell you, and what does a straight line tell you?
Steepness tells speed; a straight line shows constant speed/velocity.
A speed of 24 cm/s means what in plain language?
The vehicle travels 24 cm each second, if that speed stays constant.
A vehicle starts 150 cm ahead of Vehicle Q and moves parallel to Q. If Q is at 200 cm at 8 s, where is the third vehicle at 8 s?
350 cm