YNet StudyHub

1What is the SI unit of force?

A Newton B Joule C Pascal D Watt

2Which instrument is used to measure length most accurately in the lab?

A Meter rule B Vernier caliper C Stopwatch D Thermometer

3A gas occupies 2.0 L at 300 K. If the temperature is raised to 600 K at constant pressure, the new volume will be:

A 1.0 L B 2.0 L C 4.0 L D 8.0 L

4What happens to the pressure of a fixed amount of gas if its volume is halved at constant temperature?

A Pressure halves B Pressure doubles C Pressure remains the same D Pressure becomes zero

5Which of the following best describes the particulate nature of matter?

A Matter is continuous B Matter consists of tiny particles C Matter is made of waves D Matter has no structure

6When a metal rod is heated, it expands. This is an example of:

A Conduction B Convection C Thermal expansion D Radiation

7Heat transfer by direct contact between two objects is called:

A Conduction B Convection C Radiation D Reflection

8Which colour of light is reflected most strongly from a plane mirror?

A Red B Blue C Green D All colours are reflected equally

9The law that states the angle of incidence equals the angle of reflection is:

A Snell’s law B Law of refraction C Law of reflection D Newton’s third law

10Two like charges are brought close together. The force between them is:

A Attractive B Repulsive C Zero D Depends on the medium

11What is the unit of electric current?

A Volt B Ohm C Ampere D Coulomb

12In a simple circuit, the component that limits the flow of current is a:

A Battery B Switch C Resistor D Bulb

13If a circuit has a battery of 9 V and a resistor of 3 Ω, the current through the resistor is:

A 0.33 A B 3 A C 9 A D 27 A

14Which of the following statements about heat transfer is FALSE?

A Conduction occurs in solids B Convection occurs in fluids C Radiation requires a medium D All three can occur simultaneously

15The pressure exerted by a fluid at a depth h is given by P = ρgh. If the density (ρ) of the fluid doubles, the pressure at the same depth:

A Halves B Remains the same C Doubles D Quadruples