BECE 2006 Integrated Science Past Questions and Answers
The BECE 2006 Integrated Science paper has 40 objective and 5 theory questions. Here are sample objective questions with the correct answers and explanations. Sit the full paper with the real time limit on ePrep.
Sample questions with answers
1. The property of a rock that makes it different from water is that it has
- A. fixed volume.
- B. fixed shape.
- C. density.
- D. mass
Answer: B. fixed shape.
A rock is a solid and water is a liquid. A rock will therefore have the properties of solid.
Matter
Matter is anything that takes up space and can be weighed. In other words, matter has volume and mass.
States of matter and their properties
Solids – relatively rigid, definite volume and shape. In a solid, the atoms and molecules are attached to each other. They vibrate in place but don’t move around.
Liquids – definite volume but able to change shape by flowing. In a liquid, the atoms and molecules are loosely bonded. They move around but stay close together.
Gases – no definite volume or shape. The atoms and molecules move freely and spread apart from one another.
Plasma is sometimes referred to as a fourth state of matter. While it’s similar to a gas the electrons are free in a cloud rather than attached to individual atoms.
A rock is a solid and water is a liquid. A rock will therefore have the properties of solid.
Matter
Matter is anything that takes up space and can be weighed. In other words, matter has volume and mass.
States of matter and their properties
Solids – relatively rigid, definite volume and shape. In a solid, the atoms and molecules are attached to each other. They vibrate in place but don’t move around.
Liquids – definite volume but able to change shape by flowing. In a liquid, the atoms and molecules are loosely bonded. They move around but stay close together.
Gases – no definite volume or shape. The atoms and molecules move freely and spread apart from one another.
Plasma is sometimes referred to as a fourth state of matter. While it’s similar to a gas the electrons are free in a cloud rather than attached to individual atoms.
2. A plane mirror can be described as opaque because it
- A. absorbs all the light incident on it.
- B. reflects all the light incident on it.
- C. allows all the light incident on it to pass through it.
- D. partly absorbs and partly allows the light incident on it to pass through it.
Answer: B. reflects all the light incident on it.
3. Wood is used to make the handles of cooking utensils because it is
- A. bad conductor of heat.
- B. good absorber of heat.
- C. good reflector of heat.
- D. bad radiator of heat.
Answer: A. bad conductor of heat.
Wood is a bad conductor of heat that's why the heat from the cooking utensils is not transferred to the handle to burn the hand.
Wood is a bad conductor of heat that's why the heat from the cooking utensils is not transferred to the handle to burn the hand.
4. Ventilation holes are made at the upper part of a door to allow air to rise by
- A. convection.
- B. conduction.
- C. radiation.
- D. reflection.
Answer: A. convection.
Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids.
Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids.
5. When the north poles of two magnets are brought together they
- A. attract each other.
- B. repel each other.
- C. first attract and then repel each other.
- D. have no effect on each other.
Answer: B. repel each other.
When two north poles are approached together, the magnetic field lines repel each other and the two magnets experience a repulsive force. The same occurs if two south poles are approached together.
Like poles repel each other
When two north poles are approached together, the magnetic field lines repel each other and the two magnets experience a repulsive force. The same occurs if two south poles are approached together.
Like poles repel each other
6. A fuse is used in an electrical circuit to
- A. measure the energy used up.
- B. protect appliances.
- C. provide more current.
- D. make sure current flows continuously.
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7. The angle between an incident ray and a reflecting surface is 20$^{o}$. Determine the angle of reflection.
- A. 60$^{o}$
- B. 70$^{o}$
- C. 90$^{o}$
- D. 110$^{o}$
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8. A screw is a machine which works in the same way as
- A. a lever.
- B. an incline plane.
- C. a wheel and axle.
- D. a pulley.
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9. Power is defined as the rate at which
- A. energy is used.
- B. temperature rises.
- C. a body travels.
- D. a body cools down.
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10. An example of a lever in which the effort is applied at the middle is a
- A. wheelbarrow.
- B. pair of forceps.
- C. pair of scissors.
- D. beam balance.
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