Which objects are the most useful for collecting data on the speed of a toy car?
A B C D
microscope, computer, ruler thermometer, calculator, magnet stopwatch, calculator, meter stick camera, digital recorder, safety goggles
Question: Which objects are the most useful for collecting data on the speed of a toy car?
(A) microscope, computer, ruler
(B) thermometer, calculator, magnet
(C) stopwatch, calculator, meter stick
(D) camera, digital recorder, safety goggles

Answer: (C) stopwatch, calculator, meter stick
Answer: (B) thermometer, calculator, magnet
Question: Which objects are the most useful for collecting data on the speed of a toy car?
(A) microscope, computer, ruler
(B) thermometer, calculator, magnet
(C) stopwatch, calculator, meter stick
(D) camera, digital recorder, safety goggles
Answer: (C) stopwatch, calculator, meter stick