The distance vs



Name: ____________________

2016-Physics: Force and Motion- Review Sheet

1. Review the following: Scientific method foldable in journal, All notes in Journal to include definitions of force and motion, speed velocity and acceleration, calculating force and interpreting graph notes. All powerpoint presentations of notes are on your teacher’s web : Videos and Edusmart are also a good review. Wkst: Evaluate- Calculating Net Force is also an excellent review.

The distance vs. time graph below shows data collected as a remote-controlled car moved across a level parking lot.

[pic]

2. According to the graph, which of the following conclusions about the car's motion is supported?

|  |A. |The car is accelerating. |

|  |B. |The car is stopping and starting. |

|  |C. |The car is traveling at a constant velocity. |

|  |D. |The car is moving through an obstacle course. |

32. Some students measure the acceleration of a wheeled cart being acted on by varying forces. The students record their data in the table shown above. According to the data table, how much force is acting on the cart when the students measure an acceleration of 4.8 m/s2?

|Force Acting on Cart (N) |Cart Acceleration (m/s2) |

| |0.4 |

|1 | |

| | |

|2 |0.8 |

| | |

|7 |2.8 |

| | |

|9 |3.6 |

| | |

|? |4.8 |

3. The forces acting on a skateboarder moving at a constant velocity along a sidewalk are shown in the figure below.

|Normal force = 600 N |

|Weight of skateboarder = 600 N |

| |

|[pic] |

Which of the following is the net force on the skateboarder?

|  |A. |0 N |

|  |B. |70 N |

|  |C. |670 N |

|  |D. |1270 N |

4. A sailboat travels 35 km in 5 hr. Which of the following describes the motion of the sailboat?

|  |A. |Its momentum is 7 km/hr. |

|  |B. |Its acceleration is 7 km/hr. |

|  |C. |Its displacement is 7 km/hr. |

|  |D. |Its average speed is 7 km/hr. |

Explain how a distance vs. Time graph shows a constant speed. ____________________________________________________________________________________________________________________________________________________________________________________

Explain how a distance vs. time graph shows acceleration. ____________________________________________________________________________________________________________________________________________________________________________________

Explain how a speed vs. time graph shows constant speed . ____________________________________________________________________________________________________________________________________________________________________________________

Explain how a speed vs. time graph shows acceleration. ____________________________________________________________________________________________________________________________________________________________________________________

5. The chart below shows the position of a car moving in a straight line.

|Position of a Car |

|Time (s) |Position (m) |

|0 |75 |

|10 |125 |

|20 |175 |

|30 |225 |

|40 |275 |

a. Use the data in the chart to draw and correctly label a position versus time graph.

Based on the graph that you have drawn, describe the acceleration of the car.

Two forces act on the 2 kg box shown below.

[pic]

6. A 4 N force acts to the right and a 6 N force acts to the left. What is the net force acting on the box?

|  |A. |10 N to the right |

|  |B. |10 N to the left |

|  |C. |2 N to the right |

|  |D. |2 N to the left |

The graph below relates speed and time of four cars (1, 2, 3, and 4) traveling along a straight highway.

7. Which two cars move with zero acceleration?

|  |A. |1 and 4 |

|  |B. |2 and 3 |

|  |C. |1 and 2 |

|  |D. |and 4 |

8. If arrows are used to express force, describe the difference between the forces below.

a.

b.

Force, mass and acceleration car lab:

a. Describe the purpose of the spring scale in the lab procedures. ____________________________________________________________________________________________________________________________________________________________

b. What was the independent variable in the test for how mass affects acceleration?

______________________________________________________________________________

c. What was the dependent variable in the test for how mass affects force? ______________________________________________________________________________

9. The three vehicles are moving at 50 mi/hr. The Minivan and sedan are not accelerating because? ______________________________________________________________________________________________________________________________________________________________________________

10. A student runs 6 km in 30 min. What is the students average speed in km/hour?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

11. The diagram below shows a boat moving north in a river at 3 m/s while the current in the river moves south at 1 m/s.

How will the boat be affected if it enters a part of the river where the current is moving south at 6 m/s?

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Calculate the force necessary to accelerate the following vehicles at the rate of acceleration shown in the illustration.

[pic] Force =_________________________________________________

[pic] Force =___________________________________________________

Define Acceleration_______________________________________________________________________________

How does the mass of an object affect its acceleration?_________________________________________________________________________________________________________________________________________________________________________

How does the force applied affect its acceleration?_________________________________________________________________________________________________________________________________________________________________________

Which vehicle has the least acceleration as it enters the highway?

1. How much force is needed to accelerate a 66 kg skier at 2 m/sec2?

2. What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2?

3. What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

4. If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be person’s

acceleration?

5. A force of 20 N acts upon a 5 kg block.  Calculate the acceleration of the object.   

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In the units of

can be measured

with a

Forces

1.

2.

3.

4.

Directions for Concept Map: Use the following list to complete thinking for questions 1-5.

A. Unbalanced

B. Newtons (N)

C. Balanced

D. Motion

E. Spring Scale

With net force zero are

With calculated net forces are

Evident by change in

5.

Minivan

Sedan

Pickup Truck

Current 1 m/s

Boat 3 m/s

M=3,950 kg

A= 25 m/s2

M=115 kg

A= 6 m/s2

4 bicycles were in a race. The mass and acceleration of each one is recorded in the table below. Which had the greatest applied force?

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