- 1. The study of electromagnetic phenomenal that occur when there are no moving charges is called ____________
A) Electrostatic
B) Electrolyte
C) Dynamic electron
D) Electrolysis
- 2. If two objects are rubbed together, the object that loses electron becomes ___________
A) Charged neutrally
B) Positively and negatively charged.
C) Negatively charged
D) Positively charged
- 3. If two objects are rubbed together, the object that gains electron becomes ___________
A) Charged neutrally D.
B) Positively and negatively charged.
C) Negatively charged
D) Positively charged
- 4. Which of e following is not an example of electrostatic force ?
A) Non of the above
B) Rubbing a rod with a cloth
C) Nylon clothes
D) Television screen
- 5. ____________ are any various substance or object that block or retard the flow of electrical our thermal current.
A) Convention
B) Condenser
C) Insulator
D) Conductor
- 6. which of these is an example of conductor?
A) Glass
B) Rubber
C) Copper
D) Diamond
- 7. Which of the following is not an insulator ?
A) Oil
B) Dry wood
C) Diamond
D) Gold
- 8. ______________ are objects or materials that allows the flow of electric charge in one or more direction A.
A) Insulator
B) Conductor
C) Insulin
D) Insulation
- 9. __________________ is done when a force moves a body over a distance in the direction of the force. A.
A) Force
B) Power
C) Work
D) Energy
- 10. Work is measured in ___________
A) Newton
B) Watts
C) Ohms
D) Joules
- 11. Calculate the work done when a mass of 6.0kg is lifted through a vertical height of 3.0m above the ground ( take g = 10m/s²).
A) 18j
B) 60j
C) 30j
D) 180j
- 12. Calculate the work done when a body is pull steadily 3.5m against a frictional force of 5N A.
A) 175N
B) 175j
C) 17.5N
D) 17.5j
- 13. When heat is applied to a given liquid ,what will happen to it's molecules?
A) Remain the same
B) Gain more kinetic energy
C) Gain more potential energy
D) Non of the above.
- 14. In the liquid state, kinetic theory assumes that,
A) The movement of the molecules are less restricted
B) Molecules are in constant motion
C) The molecules are in fixed position
D) Non of the above.
- 15. In the solid state, kinetic theory assumes that,
A) Non of the above.
B) Molecules are in constant motion
C) The movement of the molecules are less restricted
D) The molecules are in fixed position
- 16. In the gaseous state, kinetic theory assumes that,
A) Molecules are in constant motion
B) The molecules are in fixed position
C) Non of the above.
D) The movement of the molecules are less restricted
- 17. Pure water has a boiling point of __________ at standard pressure.
A) 1000°C
B) 89°C
C) 100°C
D) 80.1°C
- 18. The escape of some molecules from the surface tension of the liquid is called__________
A) Evaporation
B) Melting
C) Boiling
D) Condensation
- 19. ___________ is the ultimate effect of evaporation.
A) Freezing
B) Boiling
C) Heating
D) Cooling
- 20. The following are factors that affect evaporation except.
A) Pressure
B) Water container
C) Air movement
D) Temperature
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