General Science Class 7

Two bulbs are connected in a series circuit. One bulb blows (blast), what will happen to the other bulb?

1. Will glow brighter
2. Also blow (blast)
3. Remains same
4. Will glow dimmer

The circuit that provides two or more paths for the current is called?

1. Series Circuit
2. Short Circuit
3. Parallel Circuit
4. Open Circuit

A voltmeter is always connected in a circuit in:

1. Series
2. Parallel
3. Both A and B
4. None

Electric current is measured by:

1. Ammeter
2. Voltmeter
3. Ohmmeter
4. Multimeter

The circuits in most businesses places and homes are connected in:

1. Series
2. Parallel
3. Both A and B
4. None

The hindrance to the flow of current is called?

1. Conductance
2. Inductance
3. Resistance
4. Capacitance

Stars are huge balls of gas mainly consist of ____ and:

1. Oxygen, Nitrogen
2. Helium, Oxygen
3. Hydrogen, Helium
4. Nitrogen, Carbon

Star gets denser and hotter ultimately changing into helium by process of:

1. Nuclear fusion
2. Nuclear Fission
3. Radioactive decay
4. Chemical reaction

Our Sun is a star and is the closest star to Earth. The next closer star to Earth is known as:

1. Sirius
2. Orion
3. Alpha Centauri
4. Andromeda

Colours of stars are due to their:

1. Temperature
2. Size
3. Distance
4. Composition