physics (psychic) term test

maap lgi iseng neh,,
jayusan berikut asli buatan gw lho,,

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PHYSICS ('A' Level) TERM I TEST
***** SCHOOL SERPONG

Name:
Class :
Date :

SECTION A: STRUCTURED QUESTIONS [Total 20 marks]
Answer these questions. Show your workings clearly. Marks are given in brackets [ ].

1. What will happen if a certain amount of force is given upon an object which is at rest? [3]
* The object will wake up.

2. Jend. Sudirman road in Jakarta has a length of 3000 meters. On a weekday, on an edge of the road, car A is moving with a velocity of 80 km/h, carrying 6 passengers with total mass of 287 kg. On the other edge, car B is moving in the opposite direction with a velocity of 60 km/h, carrying 8 passengers with total mass of 377 kg. At what point will the two cars meet? [5]

* At the police station, because three-in-one policy is applied on Jl. Jend. Sudirman on weekdays.

3. A car is moving on Jalan Pahlawan Seribu (BSD) towards Bunderan BSD, with a velocity of 20 m/s. Another car is moving on Jalan Lengkong (from Binus) towards Bunderan BSD, with a velocity of 25 m/s. What is the velocity of the first car as it appears to the second car? [3]

* Zero, because the second car can't see the first car, since the view is blocked with the Graha Telkom building.

4. Given the formula of pressure is force over surface area. Using dimensions or any other methods, proof the equation. [6]

* Two students were given two different homework. Student A is given 3 papers, while student B only 1 paper. This means that the pressure given on student B is less than student A. If this keeps happening, student A will become stress, thus eats less than student B, who is not stress at all. Therefore, student B will become fatter than student A. Thus, the surface area of student B is wider than student A.

Student A: more pressure, less surface area
Student B: less pressure, more surface area

Thus, pressure equals to a variable (which is force - given by the parents to do the homework, more homework, more force) over surface area.
P = F / A

5. A ball weighs 98 N while on earth, measured using a newtonmeter. Given that the gravity of the Sun is three times compared to Earth's gravity, calculate the weight of the ball on the Sun. [3]

* Undefined, because the newtonmeter will melt just before it reach the Sun.
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