Measurement & Kinematics Pop Quiz

Which of the following distance−time (d−t) graphs represents motion with increasing speed?

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• 

Determine the distance travelled during the time interval between 20 s and 80 s.

• 1600 m

• 9000 m

• 10 000 m

• 11 500 m

Estimate the average speed for the whole journey.

• 2.5 m/s

• 143.8 m/s

• 150 m/s

• 200 m/s

Determine the acceleration in the final 30 s.

• ­–6.7 m s^–2

• –2.5 m s^–2

• 6.7 m s^–2

• 2.5 m s^–2

A car accelerates at 5 m s^–2 from rest for 10 s. Determine the distance travelled.

• 25 m

• 50 m

• 500 m

• 2500 m

The vernier calipers shown has a zero error. Find the corrected reading.

• 0.09 cm

• 1.03 cm

• 1.09 cm

• 1.14 cm

State the reading on the micrometer screw gauge.

• 5.224 mm

• 5.24 mm

• 7.24 mm

• 7.74 mm

A pendulum was set in motion and time for 20 oscillations was measured a few times. The time taken are shown below:

20.38 s 21. 04 s 21.38 s

What is the period of the pendulum?

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Convert 50 m/s to km/h.

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Which prefix shows a magnitude of 10⁶

• μ

• m

• M

• G