# The international system of units si has how many

• 438
• 100% (1) 1 out of 1 people found this document helpful

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 410 - 412 out of 438 pages.

The international system of units (SI) has how many base units?Ans: 732.Accuracy is described as:Ans: the closeness of a single measurementto its true value33.Which of the following is the most acidic?ANS : BATTERY ACIDPhysics1.Where is the image located when an object is placed 30 cm from a convexmirror with a local length of 10 cm? Note: you should have figure this outexactly. Only one answer is in the right ballpark.ANS: 7.5cm in the back2.Some yellow objects actually absorb yellow light but reflect red and greenlight. If we shine yellow light on such a yellow object, it will appear......toour eyes.ANS: Black3.A 10 kg brick and a 1 kg book are dropped in a vacuum. The force ofgravity on the 1kg book isANS: 1/10 as much as the force on the 10 kgbrick?4.Light is similar to radiant_____ But has different frequencies andwavelengths.ANS: Heat
5.My 200kg sister is moving with a momentum of 600 kg m/s. How fast mustshe be moving?ANS: 3 m/s6.A cruise ship coasts into the dock with considerable momentum. If itsmass didn’t change, but its speed was reduced by a half, its momentumwill beANS: Halved (note: mali ang mga choices sa FA)7.If the velocity of an object is constant, then its acceleration must beANS:Zero8.If an impulse is applied to an object, it will experienceANS: a change inmomentum9.Which of these terms describes to us how nature behavesANS: Law?10.A kilogram is a measure ofANS: Mass11.A ray of light passing through the focal point at an angle to the optic axisof a concave mirror is reflected backANS: Parallel to the optic axis12.Two coins are at equal distances from your eye. One is under 40 cm ofwater, the other under 40 cm of glass. Which coin appears closer?ANS:The one under the glass13.What type of image is formed when an object is placed at a distance of 1.5focal length from a convex mirror?ANS: erect and virtual14.For a converging lens, a ray is arriving parallel to the optic axisANS:passes through the principal focal point15.A cannon recoils while firing a cannonball. The speed of the canon’s recoilis relatively small because theANS: cannon has much more massthan the cannonball16.My 200 Kg sister runs at 3 m/s towards a 100 kg Twinkie that is at rest tocapture it for lunch. After she grabs the twinkie, the two move forward at(in m/s)ANS: 217.90 m per 3 seconds is ____ m/s?ANS: 3018.Vector and scalar quantities differ in that scalars only haveANS:magnitude19.If my sister is somehow dropped off a skyscraper 245 high, how long will ittake for her to hit the ground?ANS: 720.If the sun is 150 million km away from the earth, how long does it takesunlight to reach the earth?ANS: 500 s21.I build a big cannon that propels my sister 45 m straight up. What is hertotal time in seconds in the air when I shoot her?ANS: 622.Light is the Radiant Energy that provides:ANS: Visual Sensation?

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 438 pages?

Course Hero member to access this document

Term
Spring
Professor
engr. rinchon
Tags
Orders of magnitude, XYZ Corporation, A Newton