1. The units in which the Universal Gravitational Constant is expressed are
a. m/s-s b. N-m-m/C-C c. N-m-m/kg-kg d. m/s
a. m/s-s b. N-m-m/C-C c. N-m-m/kg-kg d. m/s a. 15 gm b. 15 km c. 15 Gm d. 15 Mm a. 3 mm b. 0.03 m c. 30,000 pm d. 3 dm of coefficient of static friction? a. steel on steel - rubber on concrete (dry) - wood on wood - copper on steel b. rubber on concrete (dry) - steel on steel - copper on steel - wood on wood c. wood on wood - rubber on concrete (dry) - steel on steel - copper on steel d. wood on wood - copper on steel - steel on steel - rubber on concrete (dry) speed? a. A 1.0 kg block of steel sliding on steel. b. A 1.0 kg block of rubber sliding on dry asphalt. c. A 1.0 kg block of rubber sliding on wet concrete. d. A 1.0 kg block of rubber sliding on ice. a. The ratio of the rest mass of the proton to the rest mass of the electron. b. The ratio of the rest mass of the neutron to the rest mass of the proton. c. The ratio of the mass of the Earth to the mass of the Moon. d. The ratio of the Earth-Sun mean distance to the Earth-Moon mean distance. a. N/s-s b. N-m/s-s c. N-m-s d. kg-m-m/s-s a. 1 pm b. 10 nm c. 100 pm d. 1 x 10exp-6 m a. Gamma rays - ultraviolet - visible light - infrared b. X-rays - infrared - Am waves - TV waves c. Radio waves - Infrared - ultraviolet - gamma rays d. Gamma rays - ultraviolet - radio waves - infrared a. crown glass b. flint glass c. zircon d. glycerol specific frequency (f). The color of this light which our eyes would perceive is a. orange b. blue c. red d. yellow energy expenditure)? a. Ionization of a mercury atom in the ground state. b. Ionization of a hydrogen atom in the ground state. c. Applying a force of 1 x 10exp-12 N over a distance of 1 x 10exp-5 m. d. Generating a power of 1 x 10exp-10 W over a time of 2 x 10exp-5 s. a. baryons and hadrons b. baryons and mesons c. mesons and leptons d. hadrons and leptons a. Baryons consist of three quarks. b. Leptons do not possess any quarks. c. Only mesons possess antiquarks. d. Only certain types of matter possess quarks. electrical current a. increases b. decreases c. remains unchanged d. becomes zero a. copper b. silver c. gold d. aluminum heat it generates in response to that current. Which of the following would be the best material from which to construct the electrical circuit of a room air conditioner? a. nichrome b. copper c. tungsten d. aluminum a. 1 x 10exp8 m/s b. 3 x 10exp8 m/s c. 9 x 10exp9 m/s d. 1 x 10exp2 m/s between object A which is moving at a constant speed with respect to horizontal surface B? a. The mass and the weight of object A. b. The mass and the weight of surface B. c. The applied force and the mass of object A. d. The applied force and height of surface B. a. speed b. mass c. height d. gravitational acceleration stored in the spring a. increases by a factor of 2. b. decreases by a factor of 4. c. increases by a factor of 4. d. remains unchanged. spring extends from 3 cm to 9 cm, the value of k, a. decreases by a factor of 3. b. increases by a factor of 3. c. decreases by a factor of 6. d. remains unchanged. a. work - power - time b. speed - electrical charge - gravitational force c. potential energy - kinetic energy - internal energy d. mass - gravitational acceleration - height a. ammeter b. battery c. lamp d. voltmeter a. The ratio of electric charge to time is current. b. The product of voltage and current is resistance. c. The ratio of power and current is voltage. d. Electrical charge is measured in coulombs.