A student investigates a pendulum.
He measures the time for the pendulum to complete 20 oscillations.
He repeats the experiment three more times.
The readings are shown.
What is the average period of the pendulum?
The diagram shows a speed–time graph for a moving object
Which statement describes the motion of the object?
A tennis ball falls from the upstairs window of a house.
What can be said about the acceleration of the ball if air resistance is ignored?
The mass of a full bottle of cooking oil is 1.30 kg.
When exactly half of the oil has been used, the mass of the bottle plus the remaining oil is0.90 kg
What is the mass of the empty bottle?.
A student carries out an experiment to find the density of a rock.
Which two quantities does the student need to make to determine the density of the rock?
A spring is suspended from a stand. Loads are added and the extensions of the spring are
Which graph shows the result of plotting extension against load?
Which are examples of friction?
1 tension in a spring
2 air resistance
The diagram shows a nut being turned with a spanner by applying a force F to the spanner.
Which equation gives the moment of the force F about the centre of the nut?
A child pushes a toy car along a horizontal surface and then releases it.
As the car slows down, what is the main energy transfer?\
Energy resources are used to produce electricity.
Which resource is non-renewable?
The diagrams show four appliances and their power ratings.
Which appliance transfers the most energy per second?
An object is at rest on a horizontal surface.
Which equation is used to calculate the pressure that the object exerts?
Which device is shown?
Which properties does a liquid have?
In the diagrams, the black circle represents a smoke particle in air.
Which diagram shows a likely path that the particle takes because of Brownian motion?
Which name is given to the change in volume of a gas when it is heated at constant pressure?
Some ice is slowly heated and its temperature is measured. A graph is plotted of temperature
Which row describes what happens to the thermal energy and to the temperature in section X?
The melting point of a substance is –78 C and its boiling point is 23 C.
Which row gives the correct state of matter of the substance at the given temperatures?
A student sets up an experiment to find out how well different metals conduct thermal energy.
One end of a rod of each metal is in hot water and the other end has a small nail attached to it by wax
. The rods have the same thickness.
Which conditions should be satisfied in order to make this a valid test?
Two similar metal containers, P and Q, each contain water at 90C. Both containers are the same size and both are sealed.
The water in container P cools more quickly than the water in container Q.
Which statement is correct?
A wave has the appearance shown
How do the properties of the wave change as the distance from the origin increases?
A tank contains water. Ripples are produced on the surface of the water. Refraction is observed.
What causes the ripples to refract?
The diagram shows a plane mirror and a ray of light reflected from it.
Which angle is the angle of incidence?
The diagrams each show a ray of light from an object O passing through a thin converging lens.
The principal focuses in each diagram are labelled F.
Which diagrams are correct?
Which row is correct?
A student investigates sound waves from a loudspeaker.
The frequency of the sound wave is 25 000Hz. The student has normal hearing but she cannot hear the sound.
What should she do if she wants to hear a sound from the loudspeaker?
Two isolated metal spheres are both negatively charged. The spheres are brought close together but do not touch.
Which diagram shows the charge distribution on the spheres?
When a plastic comb is placed next to a small piece of aluminium foil hanging from a nylon
thread, the foil is repelled by the comb.
Why is this?
The diagram shows a piece of metal resistance wire.
Which wire, made of the same metal, has a smaller resistance?
Which labelled component in the circuit shown controls the brightness of lamp X?
A circuit includes a battery, two identical resistors and five ammeters, P, Q, R, S and T.
Which statement about the readings on the ammeters is not correct?
An electrician sets up a potential divider circuit in a fridge so that when the fridge door is open
and light from the room enters the fridge, a warning light turns on.
Which component does the electrician need for the potential divider in addition to a variable
A simple wiring diagram for an electric cooker is shown
Why is there a wire connecting the metal case of the cooker to earth?
Three statements about a.c. and d.c. currents are given.
1 A d.c. current is in one direction only whilst an a.c. current repeatedly changes direction.
2 d.c. is the abbreviation for direct current and a.c. is the abbreviation for amplitude current.
3 An a.c. current is in one direction only whilst a d.c. current repeatedly changes direction.
Which statements are correct?
Two magnets are placed near a current-carrying coil.
The diagram shows this experimental arrangement and the current direction in the coil.
Which arrangement can be used to step up a voltage?
Which diagram shows the structure of an atom containing a nucleus and two orbiting electrons?
Which statement about all atoms of this nuclide is correct?
The table compares the penetrating abilities and ionising effects of -particles and of -radiation.
When a radioactive isotope is set up close to a counter, a count rate of 38 000 counts / s is
obtained. The table shows the count rate from the isotope over a three-year period.
What is the half-life of the isotope?