CRASHCOURSE QUIZ BLOCK 1

What is a ruler used to measure?

• A ruler is used to measure length for distances between 1 mm and 1 meter.

• A ruler is used to measure weight of objects.

• A ruler is used to measure temperature.

• A ruler is used to measure time.

What is the SI unit for length?

• meter

• second

• kilogram

• ampere

To measure the volume of a regular object, what do you need to know?

• You need to know the formula and several of its length measurements (e.g., height × length × width for a solid box).

• You need to know only the color of the object.

• You need to know the object's weight and temperature.

• You need to know the object's age and material.

How do you measure the volume of an irregular object?

• Put the object in a measuring cylinder with water and measure the rise in water. The rise in water is the volume of the object.

• Weigh the object and multiply by 2 to get the volume.

• Measure the length and width only, then multiply them together.

• Use a ruler to measure the height and call it the volume.

Time is measured using ______ or ______.

• clocks or watches

• books or pens

• tables or chairs

• cars or buses

What is the SI unit for time?

• second

• meter

• kilogram

• ampere

How can you increase the accuracy for measuring any object?

• By taking an average value.

• By using a larger object.

• By measuring only once.

• By guessing the value.

A micrometre screw gauge is a tool used for measuring what?

• Small widths, thickness, or diameters.

• Temperature of liquids.

• Electrical resistance.

• Sound intensity.

What is the resolution of a micrometre screw gauge?

• 0.01 mm

• 0.1 mm

• 0.001 mm

• 1 mm

A micrometre is made up of two scales. Name them.

• Main scale (on the sleeve) and thimble scale (on the thimble).

• Vernier scale and main scale.

• Ruler scale and pointer scale.

• Dial scale and pointer scale.