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Grade 8 Physics
Test Description: Grade 8 Physics Review Game
Instructions: Answer all questions to get your test result.
1) The average speed of an airplane is 810km/h. The speed of this plane in m/s is:
A
225 m/s
B
300 m/s
C
700 m/s
2) A car moves with a speed of 40km/h, suddenly, the driver hits the brakes. The motion is said to be:
A
uniform
B
decelerated
C
accelerated
3) Ahmad leaves his house at 8h 25min in the morning and reaches school at 9h 15 min. The duration of his trip is:
A
40 minutes
B
30 minutes
C
50 minutes
4) When the speed of a moving object increases, its motion is:
A
retarded
B
uniform
C
accelerated
5) The instantaneous speed of an object in a uniform motion is:
A
equal to the average speed
B
less than the average speed
C
greater than the average speed
6) The (SI) unit of the instantaneous speed is :
A
km/h
B
km/s
C
m/s
7) The speed of light in space is estimated to be 300000km/s. The distance Sun – Neptune is 4.536 × 〖10〗^9 km . The duration that light travels from the Sun to Neptune is:
A
1512 s
B
151200 s
C
15120 s
8) A car covers a distance of 120 km in 2 h. Its average speed is:
A
120 km/h
B
240 km/h
C
60 km/h
9) A runner covers a distance of 100 m in 10 s. His average speed is:
A
10 km/h
B
72 km/h
C
36 km/h
10) The chronometer is an instrument that allows measuring the
A
duration of an event
B
instant
C
average speed of a moving object
*select an answer for all questions
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