1.1 Physical quantities and measurement techniques QS

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A measurement with size but no direction in which it acts is called a ………………… quantity.

1 point

Which list contains two vector quantities and two scalar quantities?

1 point

displacement, speed, velocity, moment of a force

mass, density, energy, force

mass, temperature, gravitational potential energy, acceleration

weight, pressure, distance, momentum

Clear selection

Which list contains three vectors and two scalars?

1 point

mass, pressure, kinetic energy, force, velocity

mass, weight, distance, displacement, momentum

pressure, energy, mass, force, acceleration

speed, velocity, moment of a force, weight, displacement

Clear selection

A small insect crawls 10cm up a window, and then another 10cm to the right. Which of the following best describes the insect’s final displacement from the start point?

1 point

0 cm

Less than 10 cm

Between 10 cm and 20 cm

Greater than 20 cm

Clear selection

Two forces of 300N and 500N are applied to a body. First, they act in the same direction, and then in opposite directions.

What is the resultant force in each case?

1 point

Same direction = 200 N, opposite directions = 800 N

Same direction = 500 N, opposite directions = 300 N

Same direction = 800 N, opposite directions = 200 N

Same direction = 800 N, opposite directions = 500 N

Clear selection

Which of the following is a vector quantity?

1 point

displacement

length

mass

volume

Clear selection

A student wants to determine the volume of a metal cylinder.

Using a ruler, he measures the height of the cylinder as 6.84cm.

The diameter is measured as 2.372cm.

Which row (A–D) shows the volume of the cylinder?

1 point

Clear selection

A student wants to determine the volume of a cylindrical rod.

Using a ruler, he measures the length of the rod as 13.8cm.

He winds a length of cotton around the rod. It goes around exactly eight times. Using a ruler, he measures the length of the cotton as 28cm.

What is the volume of the rod?

1 point

13.5 cm³

24.2 cm³

53.8 cm³

531 cm³

Clear selection

The circumference of the planet Jupiter is 449 megametres. Which of the following correctly expresses this in standard notation?

1 point

449×10⁶ m

4.49×10⁸ m

449 000 000 m

4.49×10⁵ km

Clear selection

A student wants to determine the time period of a pendulum using a stopwatch. She starts the stopwatch as the pendulum passes through the centre of its swing. She stops the stopwatch the 20th time the pendulum returns to the centre.

The time recorded is 5.0 seconds. Calculate the time period of the pendulum.

1 point

A book is 25cm long.

How many millimetres is this?

1 point

How many millimetres are there in 1km?

1 point

0.000 001

1000

1×10⁶

1 billion

Clear selection

Calculate the volume of this brick in cm³ to three significant figures.

1 point

0.143 cm³

1.43 cm³

1430 cm³

1 430 000 cm³

Clear selection

An athlete on a running track runs 20 laps in 22 minutes.

What is the average time per lap?

1 point

0.91 minutes

55 seconds

1 minute 6 seconds

1 minute 10 seconds

Clear selection

A short pendulum completes 20 oscillations in 8.0 seconds.

What is the time period of this pendulum?

1 point

2.5 ms

400 ms

0.40 s

2.5 s

Clear selection

A wind turbine has power 1.02MW.

Which row shows the correct name and meaning of the prefix M?

1 point

Clear selection

What is the volume of liquid in the measuring cylinder?

1 point

A digital stopwatch shows the following time:

The measurement is 1 minute, 2 seconds and how many milliseconds?

1 point

The circumference of planet Earth is around 40 000km.

How many megametres (Mm) is this?

1 point

State the number of millimetres in 0.938 metres.

1 point

Which of the following is the best estimate of the time taken for a person to walk a distance of 10m?

1 point

0.935s

10s

100s

Clear selection

A student uses a stopwatch and records the time taken for a ball to drop from a height of 10m to be 1.26s. What is the precision of the stopwatch?

1 point

1/100 th of a second

1/10 th of a second

0.060 s

0.26 s

Clear selection

A student records the thickness of seven bank notes to be 2.04mm. Which is the best answer for the thickness of one bank note?

1 point

0.29 mm

0.291 mm

0.2914 mm

0.3 mm

Clear selection

A jogger is running around an athletics track. The stopwatch says 1 minute 20 seconds after the first lap, and 3 minutes 10 seconds after the second. How long did it take the jogger to complete the second lap?

1 point

110 s

130 s

190 s

210 s

Clear selection

What unit is used for the volume of a solid?

1 point

cm²

cm³

g/cm³

Clear selection

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