Sumatif Tengah Semester Genap IPA Billingual Kelas 8

An object is experiencing uniform straight motion, if

• a. The object move in one direction with a force
• b. The speed of the object changes uniformly
• c. The track of the motion is straight
• d. The velocity is constant and the track is straight.

A motor bike moving at a distance of 20 km in 15 minutes. The average speed of the motor bike is

• a. 100 km/hour
• b. 80 km/hour
• c. 70 km/hour
• d. 60 km/hour

What is meant by a point of reference of a moving object?

• a. A point moving with the object
• b. A point at which the object stays
• c. A point passing through by the object
• d. A point at which the position change of the object is measured

Consider the following diagram: The distance traveled after 10 S is …

• a. 2 m
• b. 50 m
• c. 0.5 m
• d. 10 m

The temperature of water with a specific heat capacity of 4 200 J/kgoC, rises from 20oC to 30oC. It is known that the heat needed in the process is 840 000 J. What is the mass of the water?

• a. 0.002 kg
• b. 0.2 kg
• c. 2 kg
• d. 20 kg

Consider the following figure! The distance traveled by the object after 5 hours is ….

• a. 0.2 km
• b. 10 km
• c. 2.5 km
• d. 50 km

The two objects will collide after ………

• a. 5 seconds
• b. 6 seconds
• c. 25 seconds
• d. 3 seconds

Consider the following Figure! The two objects will collide after …..

• a. 12 seconds
• b. 3 seconds
• c. 7 seconds
• d. 4 seconds

A force can change (1) the shape of the object (2) the size of the object (3) the motion of an object. (4) the nature of the object Which of the above statements is correct?

• a. (1) , (2), and (3)
• b. (1) and (3)
• c. (2) and (4)
• d. (4) only

In changing the motion of an object, a force can cause it (1) to start moving, (2) to accelerate or decelerate, (3) to change its direction of motion. Which of the above statements is correct?

• a. (1) , (2), and (3)
• b. (1) and (3)
• c. (2) and (3)
• d. (3) only