Newton's Third Law and Inertia Quiz

• A book at rest on a table experiences a normal force according to Newton's Third Law from the table in response to the gravitational force of the earth on the book. (a) The normal force exerted by the table on the book (b) is an equal and opposite reaction to the gravitational force.
• A heavy lorry has a high inertia, making it more difficult to start moving and stop moving than a lighter vehicle. (To start) Difficult, (To stop) Difficult.
• Two 50N weights on a spring scale, when in equilibrium, will result in a reading of 100N on the scale, as the forces on each side of the scale are equal and opposite.
• An object at rest, or moving in a straight line with constant speed, will remain at rest or move in that manner unless acted upon by a net force.
• One can hold a body having a mass approximately equal to one kilogram with a force of one newton.
• When the normal reaction is halved, the coefficient of friction remains unchanged on dry surfaces, but can vary on different surfaces.
• The maximum force of static friction is referred to as limiting friction.
• A non-contact force is a force that acts between two objects without physical contact.
• At sea level, atmospheric pressure is approximately 101,325 Pa.
• The mass of a 60kg object on earth is not affected by a change in location to the surface of the moon.
• A spring balance is a device used to measure mass.
• Neither oil, ball bearings, nor graphite are used to increase friction.
• The force applied to a nail with a cross-sectional area of 0.001 cm² exerts a pressure of 8N/cm².
• Teflon is a polymer made from tetrafluoroethylene.
• Nylon 6,6 is a synthesized polyamide.
• Silk is a natural fiber, not a polymer.
• Glyptal is not a polyamide, but a type of alkyd resin.
• Wool is an example of a natural polymer.
• Neoprene is a synthetic rubber that contains sulfur, chlorine, and carbon.
• Polyvinyl chloride (PVC) is produced by the polymerization of vinyl chloride (CH2=CH-Cl).
• Dacron is a type of polyester.
• Carbon monoxide (CO) is a neutral oxide.
• Aluminum (Al) is less reactive than copper (Cu), calcium (Ca), and tin (Sn).
• Sulfur (S) reacts with hydrogen to form hydrogen sulfide (H2S), which has a smell of rotten eggs.
• Sulfur (S) forms both neutral and acidic oxides (SO and SO2).
• Bromine (Br) is a non-metal that is a liquid at room temperature.
• An element reacts with oxygen to form an oxide.

Test your knowledge of Newton's third law of motion and inertia with this quiz. Answer questions about reaction forces, gravitational forces, normal forces, and the effects of inertia on starting and stopping heavy objects like a lorry.