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The diagram shows a plastic rod alongside a ruler.
What is the length of the rod?
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Two stones of different weights fall at the same time from a table. Air resistance may be ignored.
What will happen and why?
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550
A cyclist rides 300 m up a slope in 50 s.
She then rides down the slope in 25 s.
What is her average speed for the whole journey?
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Diagram 1 shows a sealed plastic bottle containing a hollow glass sphere and a steel ball. Diagram 2 shows the same bottle after it has been shaken. Diagram 3 shows the same bottle after it has been shaken again until the broken glass is in tiny pieces.
The mass of the bottle and contents in diagram 1 is $m_1$.
The mass of the bottle and contents in diagram 2 is $m_2$.
The mass of the bottle and contents in diagram 3 is $m_3$.
Which statement gives the correct relation between $m_1$, $m_2$ and $m_3$?
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The table shows the weight of a 15.0 kg mass placed on different planets.
Which planet has a gravitational field strength of 11.1 N/kg?
[Table_1]
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The tank shown has the dimensions 5.0 m \times 4.0 m \times 4.0 m.
It is completely filled with water of density 1000 kg/m^3.
What is the mass of water in the tank?
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581
A train travels at a constant speed along a straight track. Which statement about the resultant force on the train is correct?
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The extension–load graph for a spring is shown. The unstretched length of the spring is 17.0 cm.
When an object is suspended from the spring, the length of the spring is 19.2 cm.
What is the weight of the object?
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A stream flows out of a lake and down the side of a hill. What best describes the change in energy stores?
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Energy resources are often used to turn a generator to produce electrical energy.
From which resource can electrical energy be produced without turning a generator?
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Two men, X and Y, try to move identical heavy boxes, P and Q.
Man X tries to push box P along the floor. The box does not move because an object is in the way.
Man Y lifts box Q from the floor onto a shelf.
Which man does the most work on their box, and which box gains the most energy?
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A book has a mass of 400 g.
The surface of the book in contact with a table has dimensions 0.10 m × 0.20 m.
The gravitational field strength $g$ is 10 N/kg.
What is the pressure exerted on the table due to the book?
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The diagram shows a piece of equipment which is used to measure atmospheric pressure.
What is this piece of equipment?
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A car tyre contains air.
The temperature of the air in the tyre rises. The volume of the air in the tyre remains constant.
Students are asked to suggest how this temperature rise will affect the movement of the air molecules.
1. The air molecules will move faster.
2. The air molecules will hit the tyre walls more often.
3. The air molecules will hit the tyre walls harder.
Which suggestions are correct?
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Very small pollen grains are suspended in water. A bright light shines from the side. When looked at through a microscope, small specks of light are seen to be moving in a random, jerky manner. What are the moving specks of light?
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The liquid level in a thermometer rises when the thermometer is placed in hot water. What causes this?
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Which description of condensation is correct?
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The thermal capacity of object Y is greater than that of object Z. What is a consequence of this?
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In which states of matter is convection an important method of thermal transfer?
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Solar heating panels consist of pipes carrying water that absorb radiation from the Sun.
Which texture and colour are the surface of the pipes so that the temperature of the water rises at the quickest rate?
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A child bounces up and down on a trampoline. The instructor asks her to bounce with a higher frequency.
What does the instructor mean?
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Light waves pass through a gap. The diagrams show two possibilities for what occurs. Which row is correct? [Table_1]
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The diagram shows a ray of light striking a plane mirror.
Through which point does the reflected ray pass?
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An object is placed in front of a thin converging lens. The diagram shows the paths of two rays from the top of the object. An image of the object is formed on a screen to the right of the lens. How does this image compare with the object?
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The diagram shows typical wavelengths (in metres) of radio waves, microwaves and X-rays in the electromagnetic spectrum.
In which region are the waves used in TV remote controllers found?
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The diagrams represent the waves produced by four sources of sound. The scales are the same for all the diagrams.
Which sound has the highest frequency?
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Which description of ultrasound is correct?
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A bar magnet picks up two steel bolts. Which diagram shows the magnetic poles induced in the bolts?
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Which diagram shows the magnetic field around a bar magnet?
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A student rubs a plastic rod with a cloth.
The rod becomes positively charged.
What has happened to the rod?
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The diagram shows a circuit containing a cell, two resistors, a switch and a voltmeter.
When the switch is open the voltmeter reads 1.5V.
When the switch is closed the voltmeter reads 2.0V.
What is the electromotive force (e.m.f.) of the cell?
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The circuit in the diagram contains four switches, $S_1$, $S_2$, $S_3$ and $S_4$.
Which three switches must be closed for the heater to work?
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The diagram shows a circuit.
What happens to the readings on the voltmeter and on the ammeter when the temperature of the thermistor increases?
[Table_1]
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A solenoid is connected to a very sensitive ammeter. A rod is inserted into one end of the solenoid. The ammeter shows that there is a small electric current in the solenoid while the rod is moving.
Which rod is being inserted?
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The diagram shows a transformer with more turns on the secondary coil than on the primary coil.
Which row is correct?
[Table_1]
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Diagram 1 shows a wire carrying an electric current into the page.
The wire is between the poles of a magnet.
A force is produced on the wire acting down towards the bottom of the page.
Diagram 2 shows the situation after the current is reversed and the magnet is turned through 90°.
In which direction does the force act after these changes?
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The charge on a proton is e.
What is the charge on an electron and what is the charge on a neutron?
[Table_1]
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The nuclide notation for sodium-23 is $^{23}_{11}\text{Na}$.
How many protons are in a nucleus of sodium-23?
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A student is investigating the count rate of a radioactive substance. How must he adjust his reading for the background count?
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The graph shows the activity of a radioactive source over a period of time. What is the half-life of the source?
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