Basic Physics/Technology (JSS 2) Mid-term test 24/25

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Welcome to your Basic Physics/Technology (JSS 2) Mid-term test 24/25

Section A (OBJECTIVE) 5marks - ½mark each

1. Which of the following is a resistive force ?

2. Benefits of friction are as follows EXCEPT

3. One of these is NOT a lubricant

4. The acronym use to identify second class lever is

5. Another name for a complex machine is

6. A simple machine use in separating objects into two and is also used to hold objects in place is called ___________

7. Areas where belt drive can be applied are as follows, EXCEPT

8. _____________ is use to connect the two pulleys together for transmission of energy.

9. Types of gears are as follows, EXCEPT

10. The measurement of how quickly a gear spins, often in a relation to the rotations of other gears is called

Section B (Subjective) 5marks

1. The engagement of gears is called _________.

2. Chain drive are meant up of roller chain and _____________

3. Lubricant is needed in belt drives (True/False)

4. Wheel barrow is an example of _________ class lever

5. One method of reducing friction that I know is _____________.

Section C (THEORY) 10marks

1. Calculate the gear ratio of a gear with 14 teeth which is used to drive a gear with 49teeth.

2. State two(2) advantages of chain drive.

3. Draw a screw.

4. List two(2) disadvantages of Friction

5. A gear has 35teeth and it's speed of rotation is 15rpm. The gear drives another gear with 7teeth. Determine the speed of the 7teeth gear.

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