Two isotopes of the same element have the same:

Which type of electromagnetic wave is used for satellite
communication?

Which of the following will float in water (density 1 000 kg/m³)

On a distance–time graph, what does a horizontal line indicate?

Which material can become magnetised?

Our Sun is classified as a:

1 kWh in joules is:

On the Moon (g = 1.6 N/kg), the weight of a 60 kg astronaut is
approximately:

The time taken by Earth to complete one orbit around the Sun is
approximately:

A radioactive source has half-life 5 days. From an initial 80 g, what
mass remains after 15 days?

Which state of matter has a fixed volume but no fixed shape?

Which rule gives the direction of induced current in a wire moved
through a magnetic field?

When light travels from air into glass, its speed:

When an ideal gas is heated at constant volume, which quantity
increases?

Two trolleys, A (2 kg, moving at 3 m/s) and B (1 kg, at rest), collide and
stick together. What is their common velocity after collision?

A 6 Ω resistor is connected across a 12 V battery. The current is:

A sound wave in air is a:

The pressure at depth h in a liquid of density ρ is given by:

Two 6 Ω resistors are connected in series. The total resistance is:

Specific latent heat of fusion of ice is 334 kJ/kg. Energy needed to melt
0.5 kg of ice at 0 °C is:

A wave has frequency 50 Hz and wavelength 4 m. What is its speed?

A box of mass 5 kg is lifted to a height of 3 m. Taking g = 10 N/kg, what
is the gain in gravitational potential energy?

Which radiation is the most penetrating?

1. A car accelerates uniformly from rest to 20 m/s in 5 s. What is its
acceleration?

An object of mass 2.4 kg has a volume of 0.0008 m³. What is its density?

Which is the best thermal conductor?

An engine receives 800 J of energy and produces 200 J of useful work.
Its efficiency is:

Which statement about evaporation is FALSE?

By which process does heat travel from the Sun to the Earth through
vacuum?

An object will remain at rest or continue moving at constant velocity
unless acted on by:

A gas occupies 200 cm³ at 100 kPa. At constant temperature, what is
its volume at 50 kPa?

The area under a velocity–time graph represents:

The smallest planet in our Solar System is:

Which force keeps planets in orbit around the Sun?

The frequency of a wave is the number of:

A spring extends by 4 cm under a load of 8 N. What load is needed to
extend it by 7 cm (within its elastic limit)?

The nucleus of an atom contains:

Which logic gate produces output 1 only when both inputs are 1?

What charge passes through a conductor when a current of 3 A flows
for 4 s?

When U-235 absorbs a slow neutron, it usually undergoes:

Which property of a sound wave determines its loudness?

A 4 N force is applied at the end of a 0.5 m spanner, perpendicular to
its length. What is the moment about the bolt?

A constant force of 10 N acts on an object of mass 2 kg. What is the
resulting acceleration?

Which colour of visible light has the highest frequency?

According to the kinetic model, gas molecules:

A ball is thrown vertically upward with initial velocity 20 m/s. Taking g =
10 m/s² and ignoring air resistance, what is the maximum height reached?

An alpha particle is composed of:

A bimetallic strip works because the two metals have different:

An object of mass 5 kg moves at 4 m/s. What is its momentum?

A force of 250 N acts uniformly on an area of 0.5 m2 . What is the
pressure?

The moment (turning effect) of a force about a pivot is calculated as

A 100 W light bulb left on for 5 hours uses how much energy in kWh?

An image formed in a plane mirror is:

A transformer changes 240 V to 1 200 V. It is:

An object moving in a circle at constant speed has:

A 2 kg object moves at 4 m/s. What is its kinetic energy?

Two 4 Ω resistors are connected in parallel. The combined resistance is:

Which is the SI unit of electrical power?

Friction between two surfaces depends on:

Specific heat capacity of water is 4 200 J/(kg·°C). Energy to heat 2 kg
from 20 °C to 80 °C?

What is the function of a fuse in a household circuit?

An electric motor lifts a load doing 600 J of work in 30 s. The output
power is:

A book rests on a table. Which is the Newton's-third-law reaction pair to
the weight of the book?

Which of the following is NOT a renewable energy source?

Two like magnetic poles brought together will:

A converging lens of focal length 10 cm forms an image of an object
placed 20 cm from it. The image distance is:

The change in direction of a wave when it crosses from one medium to
another is: