What is the direction of magnetic lines of force in a bar magnet? (a) The direction of magnetic field lines outside a bar-magnet is from North seeking pole to south seeking pole while inside the magnet it is from south to north seeking pole. Is swallowing a small magnet harmful? Swallowing a single magnet is […]
What do electrons and neutrons have in common?
What do electrons and neutrons have in common? Protons have an electrical charge, but neutrons have no charge. What do an electron and a neutron have in common? Each particle exists inside an atom. Its location is in the nucleus, because the particle is a proton or a neutron. What do protons do? Proton, stable […]
What is a black body topper?
Should I have airplane mode on or off?
Should I have airplane mode on or off? One way to help slow down battery drain is to turn Airplane Mode on. When your iPhone is on, even with the screen off, it is constantly searching for and monitoring data connections. Turning those connections off through Airplane Mode will save battery, allowing you to make […]
Is it true that feeling pain while lifting is a signal from your body that you are building muscle?
Is it true that feeling pain while lifting is a signal from your body that you are building muscle? The statement, ‘feeling pain while lifting is a signal from your body that you are buidling muscle’, is false. Feeling pain when lifting can be as a result of many factors. For instance, pain during lifting […]
Is prophethood the most important article of faith?
Is prophethood the most important article of faith? “Prophethood is the most important Article of Faith.” divergent views within Islam • Refer to sources of wisdom and authority. What are the main beliefs of Shia? Shia Muslims believe that just as a prophet is appointed by God alone, only God has the prerogative to appoint […]
Why does the speedometer of a car read instantaneous speed?
Why does the speedometer of a car read instantaneous speed? The speedometer of a car read the instantaneous speed not the average speed. We know that average speed is the ratio of total distance to the total time.It changes during when the car is moving . What does the speedometer of the car measure? Speedometer, […]
What kinds of sensory receptors are in the skin?
What kinds of sensory receptors are in the skin? The sensory receptors in the skin are: cutaneous mechanoreceptors. Ruffini’s end organ (skin stretch) End-bulbs of Krause (Cold) Meissner’s corpuscle (changes in texture, slow vibrations) Pacinian corpuscle (deep pressure, fast vibrations) thermoreceptor. nociceptors. chemoreceptors. What are the four general senses? The general senses are pain, temperature, […]
How do people eat in space?
How do people eat in space? Astronauts mainly drink water while in space, but flavoured drinks are also available. Freeze-dried drink mixes such as coffee or tea, lemonade and orange juice are provided in vacuum sealed pouches. The astronauts then add water to the beverage pouch through the pressurised hose and suck the drink through […]
What products increase friction?
What products increase friction? There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the ‘designs’ that you can see on the tyre surface), which increase the friction […]