Grade 8 Physics Question Preview (ID: 53287)


Grade 8 Physics Review Game. TEACHERS: click here for quick copy question ID numbers.

The average speed of an airplane is 810km/h. The speed of this plane in m/s is:
a) 300 m/s
b) 225 m/s
c) 700 m/s
d)

A car moves with a speed of 40km/h, suddenly, the driver hits the brakes. The motion is said to be:
a) decelerated
b) accelerated
c) uniform
d)

Ahmad leaves his house at 8h 25min in the morning and reaches school at 9h 15 min. The duration of his trip is:
a) 30 minutes
b) 40 minutes
c) 50 minutes
d)

When the speed of a moving object increases, its motion is:
a) accelerated
b) uniform
c) retarded
d)

The instantaneous speed of an object in a uniform motion is:
a) less than the average speed
b) equal to the average speed
c) greater than the average speed
d)

The (SI) unit of the instantaneous speed is :
a) km/h
b) km/s
c) m/s
d)

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) 151200 s
b) 15120 s
c) 1512 s
d)

A car covers a distance of 120 km in 2 h. Its average speed is:
a) 240 km/h
b) 120 km/h
c) 60 km/h
d)

A runner covers a distance of 100 m in 10 s. His average speed is:
a) 72 km/h
b) 10 km/h
c) 36 km/h
d)

The chronometer is an instrument that allows measuring the
a) duration of an event
b) instant
c) average speed of a moving object
d)

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