1) For hundreds of years, scientists have found information about the stars and planets using a) Telescopes b) Microscopes c) Space probes d) Seismometers 2) Stars like our Sun are formed from a) Clouds of dust and gas b) Planets colliding c) Comet tails d) Galaxies colliding 3) Our galaxy is called a) The nebula b) The constellation c) The milky way d) The solar system 4) Mobile phones send information using a) Ultraviolet rays b) Microwaves c) X rays d) Ultrasound 5) Some scientists think that mobile phones are a danger to health. They think this because they know that some of the radiation emitted by the phone a) is reflected by body tissue b) is absorbed by body tissue c) can cause burns to skin tissue d) can cause skin cancer 6) Jo drew diagrams of the Earth in orbit. Which of these is correct? a) a b) b c) c d) d 7) Jo and Kim selected the following information from the Internet. Kim saw an error in the information about the average distance of the planets from the Sun. For which of these planets is the information wrong? a) Mercury b) Mars c) Venus d) Jupiter 8) Which planet is about the same size as Earth? a) Mercury b) Venus c) Mars d) Saturn 9) The time taken for Jupiter to complete one orbit is a) 1.9 Earth years b) 11.9 Earth years c) 29.5 Earth years d) 65.4 Earth years 10) A scientist measures the time it takes for light to travel to the Moon and back. By repeating her measurements the scientist makes her results a) more valid b) more reliable c) error free d) a fair test 11) Jo and Kim read that it is too cold for people to live on Jupiter. Which planet will be even colder than Jupiter? a) Saturn b) Venus c) Mars d) None of the planets 12) Sophie studies some X-ray images of broken bones. The images of the broken bones are produced because a) some light can pass through the break in the bone b) some X-ray radiation is absorbed by the bone c) all X-ray radiation is transmitted by the bone d) all X-ray radiation is reflected by the bone 13) Sophie and Amarni discuss how an unborn fetus is usually scanned. The image is produced because body tissue a) absorbs X-rays b) absorbs ultrasound c) reflects X-rays d) reflects ultrasound 14) Sophie compares genuine and forged bank notes. Part of the genuine note fluoresces in ultraviolet light but the forgery does not. The fluorescence is caused by chemicals that a) absorb visible light b) absorb ultraviolet light and emit visible light c) absorb ultraviolet light and emit infrared waves d) reflect ultraviolet light 15) Amarni researches some dangers of radiation. Amarni found that there is concern over the increasing number of skin cancers. Skin cancer is mainly caused by too much exposure to a) microwave radiation b) x rays c) infrared radiation d) ultraviolet radiation 16) Sophie and Amarni discuss the use of radiation in weather forecasting. Who is correct? a) Sophie b) Armani c) Sophie and Armani d) Neither 17) Kendall correctly calculated the average time for the three results for 10 cm. Her answer is a) 0.3s b) 0.5s c) 0.75s d) 1.5s 18) Who is evaluating the data? a) Hayley b) Kendall c) Robyn d) Shelley 19) The diagram shows a side view of the waves in the ripple tank.The wavelength of the waves is a) 0.2cm b) 0.4cm c) 3cm d) 30cm 20) The speed of visible light in a vacuum is 300 000 000 m/s. Which row of the table is correct for ultraviolet waves? a) a b) b c) c d) d 21) Which chart shows the electromagnetic waves in order of increasing wavelength? a) a b) b c) c d) d 22) Who is correct? a) Phil b) Jane c) Phil and Jane d) Neither 23) The gravitational field strength on the Moon is 1.6 N/kg. A piece of rock has a mass of 8 kg. The weight of the rock on the Moon is a) 0N b) 5N c) 8N d) 12.8N 24) Which row in the tables is correct? a) a b) b c) c d) d

P1b June08 1-24

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