What is the reading of the vernier caliper shown above?

• 0.28 cm

• 0.82 cm

• 0.28 mm

• 0.82 mm

What is the reading of the micrometer shown below?

• 7.17 cm

• 6.67 mm

• 5.17 mm

• 6.50 mm

What units do we use to measure mass?

• milliliters (mL)
• liters (L)
• centimeters (cm)
• grams (g)

• A

• B

• C

• D

A tunnel has a length of 50 km. A car takes 20 min to travel between the two ends of the tunnel. What is the average speed of the car?

• 2.5 km / h

• 16.6 km / h

• 150 km / h

• 1000 km / h

• pole 1 and pole 2.

• pole 2 and pole 3.

• pole 3 and pole 4.

• pole 4 and pole 5.

• A

• B

• C

• D

• A

• B

• C

• D

Which speed/ time graph applies to an object at rest?

• A

• B

• C

• D

A small steel ball is dropped from a low balcony. Ignoring air resistance, which statement describes its motion?

• It falls with decreasing acceleration.

• It falls with constant acceleration.

• It falls with decreasing speed.

• It falls with constant speed.