Physics Test 10 Please don't use any search browser to find the answer. Best of Luck! Please! Enter Password 1 / 50 A capacitor that is used to store chemical energy is called an ? Ceramic capacitor Electrolytic capacitor Mica capacitor Paper capacitor 2 / 50 Hydroelectric power is the energy generated from the ? Heat of magma Solar panels Movement of water Wind turbines 3 / 50 Astronomers use radio waves in space instead of sound waves because sound waves do not travel through _________? Liquids Space Gases Atmosphere 4 / 50 A wave moves upward and inward across the way if it is ? Reflecting Interfering Refracting Diffracting 5 / 50 Thermal conductivity of water ? 100 W/m·K 0.59 W/m·K 1.5 W/m·K 14.6 W/m·K 6 / 50 Plastic is a good ? Insulator Semiconductor Metal Conductor 7 / 50 1 kWh is a unit of energy equal to ? 1000 watt-hours 1000 kilojoules 100 joules 1 joule/second 8 / 50 In 1973, Jim Maxwell, Australian cricket commentator, said that _? sound is a wave of air pressure that travels through the atmosphere. Sound is noise created by bats Sound travels only in water Sound needs no medium to travel 9 / 50 If q is negative, the image is ? Real Erect Virtual Magnified 10 / 50 Human can't hear less than ? 20 Hz 40 Hz 10 Hz 25 Hz 11 / 50 The material between capacitor plates is an insulator, also known as a ? Dielectric Conductor Resistor Inductor 12 / 50 Loudness is directly proportional to _____? Time Frequency Wavelength Amplitude 13 / 50 The rate of change of momentum is equal to ? Acceleration Force Energy Power 14 / 50 When we cannot convert a galvanometer into an ammeter, we cannot connect a _____________? High resistance in parallel High resistance in series Low resistance in series Low resistance in parallel 15 / 50 If the length doubles between a hot and cold body, the heat flux remains ? Doubled Zero Constant Halved 16 / 50 A lens that is thick at the outer edges and thin at the middle is called a ? Biconvex lens Plane lens Concave lens Convex lens 17 / 50 The unit of potential difference is the ? Ohm Watt Volt Ampere 18 / 50 A diverging lens is also called a ? Convex lens Biconvex lens Concave lens Plano-convex lens 19 / 50 In gasses how heat Flow_? Radiation, conduction, and convection Conduction and refraction Convection only Conduction only 20 / 50 Thermal energy types ? 3 4 5 2 21 / 50 Rate of flow of charge ? Power Resistance Voltage Current 22 / 50 The SI unit of current is the ? Coulomb Volt Ampere Ohm 23 / 50 When light enters from a denser to a rarer medium, it bends ? Toward the normal Away from the normal Reflects back Does not bend 24 / 50 Thermal conductivity of brass ? 0.5 W/m·K 146.87 W/m·K 15.6 W/m·K 1000 W/m·K 25 / 50 If the mass of a bob increases by 3 times, the time period of the pendulum will ? Become 3 times Be zero Become 1/3 times remain the same 26 / 50 Alpha rays have high ? Penetrating power Frequency Magnetic field Ionization power 27 / 50 The magnetic field lines of a bar magnet are _? Inside the pipe Discontinuous Outside the pipe From south to north 28 / 50 heat can be transferred in gasses by ? Radiation Expansion Conduction Compression 29 / 50 If q is positive, the image is ? Erect Virtual Real Magnified 30 / 50 A sound measuring meter, also known as a ? Noise meter Vibration meter Sonic mete Decibel meter 31 / 50 The restoring force moves a body towards its _______? Maximum amplitude Mean position Crest Node 32 / 50 The rate of change of momentum is called ? Impulse Acceleration Velocity force 33 / 50 1 mega is equal to? 10⁶ 10³ 10⁴ 10⁹ 34 / 50 In gasses, heat can be transferred through ? Radiation Conduction only Convection only None of these 35 / 50 To find the ratio of the speed of light in air to the speed of light in a medium, we use the ? Diffraction law Reflection law Photoelectric effect Refraction law 36 / 50 A concave mirror has a_____? Zero focal length Positive focal length Infinite focal length Negative focal length 37 / 50 The speed of a cycle will decrease when moving on a rough surface because of________? Momentum Friction Acceleration Pressure 38 / 50 Metals are good conductors due to ? Ionic bonds Free electrons Protons Covalent bonds 39 / 50 Non-conductors are also called_______? Conductors Amplifiers Insulators Semiconductors 40 / 50 The principal focus of a mirror is the point where all the light rays reflected from the ? Center diverge Mirrors converge Surface diverge Pole merge 41 / 50 1 kb is equal to? 128 bytes 2048 bytes 1000 bytes 1024 bytes 42 / 50 In heat, gas is transferred through ? Radiation Convection Conduction Reflection 43 / 50 In Hooke's law, force is directly proportional to ? Velocity Change in length Time Volume 44 / 50 The hydraulic press is an application of _____? Pascal's law Newton’s second law Bernoulli's principle Archimedes' principle 45 / 50 How many types of waves ? 2 4 5 3 46 / 50 A liquid has a definite volume but not a ? Definite pressure Definite energy Definite mass Definite shape 47 / 50 The sound intensity of a man is ? 2000 Hz 10 Hz 200 Hz 20 Hz 48 / 50 Balloons fly in the air because they have a_____? Large surface area Lower density than air High temperature Higher pressure 49 / 50 Birds fly in air due to ? Magnetic pull Air current Wind force only Their body weight 50 / 50 Highly penetrating rays are______? Beta rays Ultraviolet rays Gamma rays Alpha rays Your score is 0% Restart quiz
