2nd Quarter Test Grade 10

November 7, 2017 | Author: Keanu Ribs | Category: Force, Electric Current, Waves, Magnetic Field, Physical Phenomena
Share Embed Donate


Short Description

2nd Quarter Test Grade 10 science...

Description

Republic of the Philippines Nueva Ecija University of Science and Technology Fort Magsaysay Campus, Palayan City 2nd Quarter Test in Grade 10 Science Name:__________________________ Score:____________ Yr/Section:______________________ Date:_____________ TEST I – Identify what is asked in the following statements. Write your answers on the space provided before each number. (2 points each) __________________1. A device that converts mechanical energy into electrical energy. __________________2. A region around a magnet in which a magnetic force can be detected. __________________3. A device that increases or decreases the voltage of an alternating current. __________________4. The process of inducing a current by moving a magnetic field through a wire coil. __________________5. The entire range of wavelengths or frequencies of electromagnetic waves extending from gamma rays to the longest radio waves and including visible light. __________________6. The force acting on a unit area. __________________7. A device that measures small amount of electric current. __________________8. A component force, perpendicular to the surface of contact, (e.g. the contact force exerted on an object by the surface of a floor or wall, preventing the object to fall.) __________________9. A type of equilibrium when the body is in motion at a constant velocity. __________________10. It is the point from where all the weight of an object may be considered to be concentrated. __________________11. A force equal to the weight of the fluid displaced by the body. __________________12. Are substances whose shape can easily change and that are able to flow. __________________13. The ability of a solid material to regain its original shape and size after an external force acts on it. __________________14. A measure of the change in volume which results from a change in pressure. __________________15. The ratio of the mass of a substance to its unit volume. TEST II – Solve the following problems neatly and completely. 1. You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density? 2. A swimming pool is filled with water to a depth of 3 m. Calculate the pressure on the bottom of the pool due to the water. (Density of water is 1000 kg/m 3.) 3. A block of wood of mass 3.5 kg floats in water. Calculate the buoyant force on the block. 4. The large piston in a hydraulic lift has a radius of 250cm 2. What force must be applied to the small piston with a radius of 25cm 2 in order to raise a car of mass 1500 kg? 5. A 10-m uniform beam with a mass of 1.8 kg, is at rest with its ends on two scales. A uniform block, with mass of 2.7 kg, is at rest on the beam, with its center of mass at a distance 2.5 m from the beams left end. How much upward force must be exerted by the scale on the right end to keep the beam and the block on it in a horizontal position? TEST III – Enumerate what is being asked in the following. (15 pts.) a. (1-7) types of electromagnetic waves b. (8-10) states of equilibrium c. (11-15) components of a simple DC motor

“There is no beginning or end to your dreams or plans. Life is a journey from moment to moment. Live each moment to the fullest”. – Garth Catterall-Heart Prepared by: GAQ

View more...

Comments

Copyright ©2017 KUPDF Inc.
SUPPORT KUPDF