Mrs. Abeer El-Nemr

Froggy Jumps

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Science prep 3 lesson 1

Abeer ElNemr

Egypt

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Mrs. Abeer El-Nemr


Froggy Jumps Mrs. Abeer El-NemrVersion en ligne Science prep 3 lesson 1 par Abeer ElNemr 1 The distance covered by a moving body through a unit time is called the................ of the body. a weight b density c speed 2 Speed measurement unit is............... a metre. second b metre/second c metre. second2 3 A train moves at a speed 100 km/h; this means that it covers a distance of 50 km within time............... hour. a 0.3 b 0.4 c 0.5 4 The speed of a moving object relative to an observer in another moving object is called........... speed. a uniform b irregular c relative 5 If a car moves at a uniform speed; where it covers 300 meters in a half minute; then its speed equals........... metre/second. a 10 b 300 c 30 6 The speed of the car can be identified by using the spedometer. a true b false c 7 A car moves with a speed of 50m/sec., so its speed will be........... the speed of a car moves with 90 km/h. a quarter b double c half 8 The speed of a moving object icreases by increasing the time required to cover a certain distance. a true b false c 9 When an object moves with regular speed, its average speed is more than its regular speed. a true b false c 10 Measuring the relative speed of a moving object depends on the observer's state and the direction of its movement. a b true c fales