Unit 1 - Lesson 1: Motion in One Direction

1

The concept of the body movement means..........

constancy of its position with the change in time.

the change in its position with the time.

its acceleration.

its speed.

2

When car (A) covers the same distance as car (B) at the same time, this means that...........

car (A) is slower than car (B).

the two cars move at the same speed.

car (A) is faster than car (B).

car (B) is slower than car (A).

3

If the relative speed of a car is 50 km/h relative to an observer in a bus moves obs. in the same direction at 70 km/h, therefore the actual speed of this car is........

90 km/h.

50 km/h.

120 km/h.

40 km/h.

4

If car (A) moves at speed 80 km/h and car (B) moves at speed of 50 km/h in the same direction, the speed of car (A) relative to a passenger in car (B) is ........... km/h.

30

90

60

110

5

The relative speed of a moving object relative to an observer moves at the same speed in the opposite direction is.......... the actual speed.

quarter

the same

double

half

Unit 1 - Lesson 1: Motion in One Direction نسخ تكرار

Unit 1 - Lesson 1: Motion in One Direction

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