1. Fall Final Review Physics
AMS 6th Grade
Fall Final Review Physics

2. Motion 1 The scientist to first introduce the concept of inertia was
A) Copernicus.
C) Newton.
D) Galileo.

3. Motion 2
“Objects at rest stay at rest and objects in motion stay in motion” is a definition of
A) motion
B) inertia
C) natural forces

4. Motion 3
Whereas Aristotle relied on logic in explaining nature, Galileo relied on
A) mathematics
B) patterns.
C) observation and experimentation.

5. Motion 4
Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much
A) mass.
B) inertia.
C) all of the above

6. Motion 5
Compared with the mass of a certain object on Earth, the mass of the same object on the Moon is
A) more.
B) less
C) the same

7. Motion 6 Density is the ratio of A) weight to volume.
B) mass to volume.
C) weight to mass.

8. Motion 7
A textbook is sitting on a table. Which type of force is not acting on the textbook?
A) Friction.
B) Gravity.
C) Support (Normal) Force.

9. Motion 8
An object is pulled northward with a force of 10 N and southward with a force of 15 N. The magnitude of the net force on the object is
A) 10 N.
B) 15 N.
C) 5 N.

10. Motion 9
A piece of rope is pulled by two people in a tug-of-war. Each pulls with 400 N of force. What is the tension in the rope?
A) 0 N.
B) 400 N.
C) 800 N.

11. Motion 10 Which has zero acceleration? An object
A) moving at constant velocity.
B) at rest.
C) all of the above
D) none of the above

12. Motion 11
When you stand at rest on a pair of bathroom scales, the readings on the scales will always
A) add to equal your weight.
B) each equal your weight.
C) each be less than your weight.

13. Motion 12
A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is (draw a picture)
A) 1600 N.
B) 400 N.
C) 800 N.
D) 200 N.

14. Motion 13
The two measurements necessary for calculating average speed are
A) acceleration and time.
B) distance and time.
C) velocity and time.

15. Motion 14
The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is
A) more than 10 N.
B) equal to 10 N.
C) less than 10 N.

16. Motion 15
The average speed of a horse that gallops a distance of 10 km in 60 minutes is
A) 60 km/hour.
B) 10 km/hour.
C) 20 km/hour.

17. Newton’s Law 16
According to Newton's Law of Inertia, the result of walking around much of the day is similar to tightening the head of a hammer when its handle hits a solid surface so that we are actually a little bit shorter in the
A) morning.
B) evening.
C) no difference, really

18. Newton’s Law 17
A package falls off a truck that is moving at 30 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is
A) zero.
B) more than 30 m/s.
C) about 30 m/s.

19. Newton’s Law 18
On the surface of Jupiter, where the acceleration due to gravity is about three times that of Earth, a 100-kg rock would have a mass of about
A) 300 kg.
B) 100 kg.
C) 600 kg.

20. Newton’s Law 19
An object is propelled along a straight-line path by a force. If the net force were doubled, its acceleration would
A) quadruple.
B) double.
C) halve.

21. Newton’s Law 20
If an object's mass is decreasing while a constant force is applied to the object, the acceleration
A) increases.
B) decreases.
C) remains the same.

22. Newton’s Law 21
An object is propelled along a straight-line path in space by a force. If the mass of the object somehow becomes twice as much, its acceleration
A) doubles.
B) quadruples.
C) halves.

23. Newton’s Law 22
A 10-N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is
A) 4 N.
B) 6 N.
C) 10 N.

24. Newton’s Law 23
A girl pulls on a 10-kg wagon with a constant force of 30 N. What is the wagon's acceleration in meters per second squared?
A) 0.3
B) 300
C) 3.0

25. Newton’s Law 24
An object following a straight-line path at constant speed
A) has zero acceleration.
B) has a net force acting upon it in the direction of motion.
C) must be moving in a vacuum or in the absence of air drag.

26. Newton’s Law 25
Neglecting friction, a large block of ice and a small block of ice start sliding down an incline together. The heavier block will get to the bottom
A) after the light block.
B) at the same time as the light block.
C) before the light block.

27. Newton’s Law 26
A jumbo jet has a mass of 100,000 kg. The thrust for each of four engines is 50,000 N. What is the jet's acceleration in meters per second squared when taking off?
A) 4
B) 1
C) 2

28. Newton’s Law 27
A skydiver of mass 100 kg experiences air resistance of 500 N and gravity equal to 1000 N, and an acceleration of about
A) 0.3g.
B) 0.5g.
C) 0.4g.

29. Newton’s Law 28
Two factors that greatly affect air resistance on falling objects are the size (surface area) and
A) speed of the object.
B) mass of the object.
C) weight of the object.

30. Newton’s Law 29
A heavy object and a light object are dropped at the same time from rest in a vacuum. The heavier object reaches the ground
A) later than the lighter object.
B) at the same time as the lighter object.
C) sooner than the lighter object.

31. Newton’s Law 30
A car traveling at 100 km/h strikes an unfortunate bug and splatters it. The force of impact is greater on the
A) bug.
B) car.
C) same for both

32. Newton’s Law 31
A karate chop delivers a blow of 3000 N to a board that breaks. The force that acts on the hand during this event is actually
A) more than 3000 N.
B) 3000 N.
C) less than 3000 N.

33. Newton’s Law 32
Which of the following has the largest momentum relative to the earth?
A) a Mack truck parked in a parking lot
B) a dog running down the street
C) a tightrope walker crossing Niagara Falls
D) a pickup truck speeding along a highway

34. Newton’s Law 33
A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has five times as much mass, its momentum is
A) two times as much.
B) five times as much.
C) zero.

35. Newton’s Law 34
A 4-kg ball has a momentum of 12 kg∙m/s. What is the ball's speed?
A) 3 m/s
B) 48 m/s
C) 4 m/s

36. Newton’s Law 35
A 5.0-kg blob of clay moving at 2.0 m/s slams into a 4.0-kg blob of clay at rest. The speed of the two blobs stuck together after colliding is about
A) 2.5 m/s.
B) 1.5 m/s.
C) 1.1 m/s.
D) none of the above

37. Momentum 36
When a squid pushes against water, the squid moves forward because
A) its muscles flex.
B) its tentacles apply a strong force to the water.
C) the water pushes against the squid.

38. Momentum 37
Which of the following has the largest momentum relative to the earth?
A) a Mack truck parked in a parking lot
B) a dog running down the street
C) a tightrope walker crossing Niagara Falls
D) a pickup truck speeding along a highway

39. Momentum 38 The SI unit for force is A) newton (N). B) meter (m).
C) joule (J).

40. Momentum 39
A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has five times as much mass, its momentum is
A) two times as much.
B) five times as much.
C) zero.

41. Momentum 40
A moving object on which no forces are acting will continue to move with constant
A) momentum.
B) acceleration.
C) all of the above
D) none of the above

42. Momentum 41
A 4-kg ball has a momentum of 12 kg∙m/s. What is the ball's speed?
A) 3 m/s
B) 48 m/s
C) 4 m/s

43. Momentum 42
The average momentum of a 70-kg runner who covers 400 m in 50 s is
A) 57 kg∙m/s.
B) 5490 kg∙m/s.
C) 560 kg∙m/s.
D) 8.75 kg∙m/s.

44. Momentum 43
A fork lift moves 30m carrying a 1000N box across the warehouse floor. How much work is done by the fork lift?
A) No work is done.
B) J.
C) 33.3 J.

45. Momentum 44
25,000J of work is done to move a rock 25m. How much force was applied?
A) No force was needed.
B) 1000 J.
C) 100 W.

46. Momentum 45
If A new conveyor system at the local packaging plant will utilize a mechanical arm to exert an average force of 1000 N to push large crates a distance of 10 meters in 20 seconds. How much power is required for the motor?
A) 1000 W.
B) 500 W.
C) 5000 W.

47. Momentum 46
An object that has potential energy may have this energy because of its
A) speed.
B) momentum.
C) position.
D) acceleration.

48. Momentum 47
A car moves four times as fast as an identical car. Compared to the slower car, the faster car has
A) 12 times the KE.
B) 8 times the KE.
C) 4 times the KE.
D) 16 times the KE.

49. Momentum 48
A rock at the top of a cliff has 500 J of PE. The rock is dropped off the cliff. How much PE does the rock have when it reached the ground?
A) 500 J.
B) 250 J.
C) 0 J.

50. Momentum 49
Which has greater kinetic energy, a car traveling at 30 km/h or a car of half that mass traveling at 60 km/h?
A) the 60-km/h car
B) the 30-km/h car
C) Both have the same kinetic energy.

51. Momentum 50
Which point in its path where the pendulum has the most Kinetic Energy?