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Newton’s Laws Review game. The force you have to overcome to start an object moving is_____________________. a.Rolling friction b.Static friction c.Sliding.

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Presentation on theme: "Newton’s Laws Review game. The force you have to overcome to start an object moving is_____________________. a.Rolling friction b.Static friction c.Sliding."— Presentation transcript:

1 Newton’s Laws Review game

2 The force you have to overcome to start an object moving is_____________________. a.Rolling friction b.Static friction c.Sliding friction d.Air resistance

3 b. Static Friction

4 Which label goes on the horizontal axis? a.Distance b.Force c.Mass d.Acceleration

5 a. Distance

6 Which of the following is an example of a noncontact force? a.Musician playing piano b.Athlete hitting a ball with a bat c.A ball falling after you toss it in the air d.Karate expert breaking a stake of wood

7 c. A ball falling after you toss it in the air.

8 An object’s weight is ________ its mass. a.Equal to b.Less than c.Proportional to d.Greater than

9 c. Proportional

10 An arrow can be used to represent a force. The length of the arrow represents ____________. a.Direction of the force b.Strength of the force c.Mass of the force d.Acceleration of the force

11 b. Strength of the force

12 A skater slowing as she slides across the ice is an example of ___________. a.Inertia b.Momentum c.Friction d.Mass

13 c. Friction

14 A planet is discovered that is the same size as Earth and has the same gravitational acceleration, but has twice the mass. If you weigh 700 N on Earth, on the new planet you would weight__________. a.350 N b.700 N c.1,400 N d.2,800 N

15 c. 1,400 N

16 Which of the following is a force? a.Momentum b.Friction c.Acceleration d.Velocity

17 b. Friction

18 The unit of force is _________. a.m/s b.The hertz c.The joule d.The newton

19

20 Which of the following is an example of an unbalanced force? a.Book sitting on a table b.Car sitting in the garage c.Person on an elevator going down d.Person leaning on a wall

21 c. Person on an elevator going down

22 The force that opposes motion is ___________. a.A balanced force b.An unbalanced force c.An accelerating force d.Friction

23

24 Which of the following is a force or motion that is involved in the Moon orbiting Earth? a.A force pulling the Moon towards the center b.A speed at right angles to the line form the mass of the Moon to the center of Earth c.Acceleration towards the center of Earth d.All of the above

25

26 An unbalanced force acting on an object causes it to ___________. a.Move at a constant speed b.Continue in a straight line c.Not change its velocity d.Accelerate

27

28 Forces that are equal in size but opposite in direction are __________. a.Balanced forces b.Frictional forces c.Inertial forces d.Net forces 30 N

29 a. Balanced forces

30 Which of the following is NOT and example of circular motion? a.Car turning a corner b.Yo-yo on a string going in a circle c.Car accelerating onto highway d.The Moon’s path around Earth

31 If gravity did NOT affect the path of a horizontally thrown ball, the ball would ___________. a.Go straight up b.Travel horizontally c.Fall straight down d.Follow a curved path

32 b. Travel horizontally

33 Unbalanced forces can make an object accelerate by __________. a.Changing its speed b.Changing its direction c.Both a and b d.Neither a nor b

34 c. Both a and b change its speed and direction

35 When two birds are pulling on a worm and the worm moves towards the first bird, you know that the forces are________. a.Long-range b.Action-reaction c.Unbalanced d.Balances

36 c. Unbalanced

37 Which of the following keeps a satellite in orbit? a.Frictional force b.Kinetic force c.Centripetal force d.Acceleration force

38 c. Centripetal force

39 We are able to walk forward because ____________. a.We push on the air b.We push on the ground c.The air pushes on us d.The ground pushes on us

40

41 A 3,000-N force gives an object an acceleration of 15 m/s. The mass of the object is ____________. m=f/a a.45,000 kg b.1,500 kg c.200 kg d.15 kg

42 c. 200 kg

43 The relationship among force, mass, and acceleration is stated in ___________. a.The law of conservation of momentum b.Newton’s first law of motion c.Newton’s second law of motion d.Newton’s third law of motion

44 c. Newton’s second law of motion

45 A 300-N force acts on a 25- kg object. The acceleration of the object is ____________. a=f/m a.7,500 m/s^2 b.300 m/s^2 c.25 m/2^2 d.12 m/s^2

46

47 According to Newton’s second law of motion, ___________. a.F=mv b.F=m/a c.A=Fnet/m d.F=ma

48

49 An object of large mass has _____ than an object of small mass. a.Less momentum b.More momentum c.Less weight d.Greater acceleration

50 b. More momentum

51 Which of the following is the equation for momentum? a.P=m/v b.P=m X v c.P=v/m d.P=w X s

52 b. p= m X v

53 A student hits a nail with a hammer. During the collision, there is _____________. a.A force on the hammer but not on the nail b.A force on the nail but not on the hammer c.A force on the nail and also on the hammer d.No force on either object in the collision

54 c. A force on the nail and also on the hammer

55 Which of the following best completes the phrase? For every action there is ___________. a.A reaction b.An equal reaction c.An opposite reaction d.An equal and opposite reaction

56

57 Fred (m=67 kg) foolishly attempts to jump from a canoe (m=45 kg) to the dock. If he jumps forward with a speed of 3.3 m/s, how fast will the canoe move backwards a.2.2 m/s b.22 m/s c.4.9 m/s d.49 m/s

58 c. 4.9 m/s

59 Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the _________ direction to that of the first object. a.Opposite b.Same c.Right angle d.Vertical

60 a. Opposite


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