1 / 21

Who Wants to be a Genius?

Who Wants to be a Genius?. Chapter 16 Test Review Force and Newton’s Laws. Why does a feather fall through the air more slowly than a brick?. Gravity Inertia Air resistance Momentum. What is the reaction force to Earth’s gravity when a diver jumps off a diving board?.

amelia
Télécharger la présentation

Who Wants to be a Genius?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Who Wants to be a Genius? Chapter 16 Test Review Force and Newton’s Laws

  2. Why does a feather fall through the air more slowly than a brick? • Gravity • Inertia • Air resistance • Momentum

  3. What is the reaction force to Earth’s gravity when a diver jumps off a diving board? • The diver’s legs push against the board • Friction between the diver and water slows the diver • Air resistance slows the diver • The diver pulls Earth up

  4. A 200-N force gives an object an acceleration of 10 m/s2. The mass of the object is ____. • 20 kg • 2000 kg • 210 kg • 100 kg

  5. Air resistance ___ as you move faster. • remains the same • eventually disappears • decreases • increases

  6. Forces that are equal in size but opposite in direction are ____. • inertial forces • frictional forces • balanced forces • net forces

  7. Whenever a body is in motion, there is always ___ to oppose the motion. • friction • gravity • acceleration • inertia

  8. According to Newton’s second law of motion, ____ • F=mv • F=m/a • a=Fnet/m • F=ma

  9. If gravity did not affect the path of a horizontally thrown ball, the ball would ____. • go straight up • fall straight down • follow a curved path • travel horizontally

  10. With action-reaction forces, ___ • The forces are created at the same time • Both forces already existed • The reaction force is created first • The action force is created first

  11. The upward force on an object falling through the air is ___ • inertia • terminal velocity • gravity • air resistance

  12. A 500-N force acts on a 50-kg object. The acceleration of the object is ___. • 25000 m/s2 • 450 m/s2 • 10 m/s2 • 550 m/s2

  13. Newton’s first law of motion states that an object remains at rest unless a ___ force acts on it. • balanced • net • gravitational • frictional

  14. The statement “for every action, there is an equal but opposite reaction” is a statement of ___. • Newton’s first law • Newton’s second law • Newton’s third law • The law of conservation of momentum

  15. The force you have to overcome to start on object moving is ___. • air resistance • sliding friction • rolling friction • static friction

  16. The relationship among force, mass, and acceleration is stated in ___. • Newton’s first law of motion • Newton’s second law of motion • Newton’s third law of motion • The law of conservation of momentum

  17. The tendency of an object to resist any change in its motion. • inertia • speed • momentum • friction

  18. If you triple the net force on an object, the acceleration will __. • stay the same • double • triple • decrease

  19. To keep a cart rolling downhill, the force of gravity must be greater than the _____ force. • unbalanced • balanced • frictional • net

  20. A push or pull that one object exerts on another. • Force • Gravity • Inertia • Momentum

  21. A rocket launching is an example of Newton’s _______. • first law • second law • third law • law of conservation of momentum

More Related