May The Force Be With You Quiz

Tuesday, April 30th

Review "Official Review Guide" Tonight 

Answers and Copy of review guide below

Bring a calculator if you would like to use one on the quiz

Some review websites 

http://quizlet.com/4282778/speed-forces-motion-flash-cards/

Speed Problems
http://glencoe.mcgraw-hill.com/sites/0078617707/student_view0/chapter1/math_practice_1.html

Little Advanced but great overview of forces- but remember you do not
need to know how to solve problems for forces- just the types of
forces

http://www.teachertube.com/viewVideo.php?video_id=58727

Simple Machines
http://www.edheads.org/activities/simple-machines/

Newton's First Law- We watched this in-class
http://www.teachertube.com/viewVideo.php?title=Newton_s_First_Law&video_id=104323

May the Force BE With You

ANSWERS

1. What does it mean if an object is in motion?

THE OBJECT HAS A SPEED AND ITS DISTANCE CHANGES FROM POINT A TO POINT B.

2. What is a reference point and why does this reference point have to be stationary (not moving)?

A REFERENCE POINT IS A STATIONARY OBJECT THAT ALLOWS A PERSON TO TELL IF AN OBJECT IS IN MOTION. IT HAS TO BE STATIONARY SO YOU DO NOT GET CONFUSED WHICH OBJECT IS IN MOTION.

3. What two pieces of data do you need in order to figure out the speed of an object?

DISTANCE AND TIME

4. What is the formula used to solve speed?

DISTANCE DIVIDED TIME = SPEED

5.  What is the speed of a person who jogs 125  meters in 55 minutes? SHOW YOUR WORK

DISTANCE 125 M

TIME 55 MINUTES

125 M DIVIDED 55 MINUTES = 2.27 M/MIN

6. How is velocity different than speed?

SPEED INCLUDES THE DISTANCE AND THE TIME OF AN OBJECT, WHILE VELOCITY ALSO INCLUDES THE DIRECTION THE OBJECT IS TRAVELING.

7. A hurricane is traveling 210 miles within 3 hours heading West. What is the hurricane’s velocity?

DISTANCE  210 MILES

TIME 3 HOURS

210 M DIVIDED 3 HOURS = 70 MILES/HR W

8. Define Newton’s First Law of Motion.

AN OBJECT AT REST WILL REMAIN AT REST. HOWEVER, AN OBJECT MOVING AT A SPEED WILL CONTINUE AT THE SPEED UNLESS ACTED UPON BY AN UNBALANCED FORCE.

9. Why does a person’s body move forward in a car when someone slams on the brakes? Where is the speed and what is the unbalanced force?

THE BODY MOVES FORWARD BECAUSE IT IS STILL MOVING AT THE SPEED IN WHICH THE CAR IS TRAVELING. THE BODY STILL IS TRAVELING WITH THE SPEED OF THE CAR UNTIL THE UNBALANCED FORCE OF THE SEATBELT PULLS THE BODY BACK INTO THE SEAT.

10. Why is wearing a seatbelt in a car so important and how does this connect to Newton’s First Law of Motion?

WEARING A SEATBELT IS IMPORTANT BECAUSE IT PREVENTS YOUR BODY FROM STILL MOVING AT THE SPEED OF THE CAR AND FLYING THROUGH THE WINDOW. IT IS AN UNBALANCED FORCE (SEATBELT) THAT HOLDS PULLS YOU BACK  IN PLACE.

11. What is a force?

PUSH OR PULL EXERTED ON AN OBJECT

Give an example of a force- PUSHING A SHOPPING CART

12. Compare and contrast balanced and unbalanced force.  

Unbalanced Force            Compare (alike)        Balanced Force

1- UNEQUAL FORCES            PUSH OR PULL            EQUAL FORCES

2-CHANGES DIRECTION        EQUALS NET FORCE        DOESN’T CHANGE DIRECTION

13. What is a simple machine?

MACHINE THAT ALLOWS YOU TO DO WORK WITH EASE AND LESS EFFORT.

What are the seven types of simple machines?

1-PULLEY                2-GEAR

3-WEDGE                4-INCLINED PLANE

5-LEVER                6-SCREW

7-WHEEL AND AXLE

What is a compound machine?

2 OR MORE SIMPLE MACHINE BUILT INTO A COMPOUND MACHINE

Identify the type of simple machine with each example.

Flag pole-PULLEY

Toilet flusher-LEVER

Binder- WEDGE

Blade of a fan-WHEEL AND AXLE

Stairs-INCLINED PLANE

Water bottle cap-SCREW

Egg beater-GEAR

Name:___________________________

Period:_____

May the Force BE With You

Review Guide

1. What does it mean if an object is in motion?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________

2. What is a reference point and why does this reference point have to be stationary (not moving)?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________

3. What two pieces of data do you need in order to figure out the speed of an object?

________________ and ________________

4. What is the formula used to solve speed?

______________ divided _____________= Speed

5.  What is the speed of a person who jogs 125  meters in 55 minutes? SHOW YOUR WORK

6. How is velocity different than speed?

____________________________________________________________________________________________________________________________________________________

7. A hurricane is traveling 210 miles within 3 hours heading West. What is the hurricane’s velocity?

8. Define Newton’s First Law of Motion.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________

9. Why does a person’s body move forward in a car when someone slams on the brakes? Where is the speed and what is the unbalanced force?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________

10. Why is wearing a seatbelt in a car so important and how does this connect to Newton’s First Law of Motion?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________

11. What is a force?

__________________________________________________________________________

Give an example of a force_____________________________________________________

12. Compare and contrast balanced and unbalanced force.  

Unbalanced Force            Compare (alike)        Balanced Force

_1__________________    __1_____________________    _1__________________

____________________    ________________________    ____________________

13. What is a simple machine?

____________________________________________________________________________________________________________________________________________________

What are the seven types of simple machines?

1-_______________________    2-____________________

3-_______________________    4-____________________

5-_______________________    6-____________________

7-_______________________

What is a compound machine?

____________________________________________________________________________________________________________________________________________________

Identify the type of simple machine with each example.

Flag pole-_____________________________

Toilet flusher-_____________________________

Binder -________________________

Blade of a fan-______________________________

Stairs-___________________________

Water bottle cap-___________________________

Egg beater-_____________________________