WHICH OF THE FOLLOWING IS AN EXAMPLE OF A CONTACT FORCE? A. ELECTRICAL FORCE B. APPLIED FORCE C. GRAVITATIONAL FORCE D.
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1 WHICH OF THE FOLLOWING IS AN EXAMPLE OF A CONTACT FORCE? A. ELECTRICAL FORCE B. APPLIED FORCE C. GRAVITATIONAL FORCE D. MAGNETIC FORCE
2 WHICH TWO MEASUREMENTS ARE NEEDED TO DETERMINE THE SPEED OF AN OBJECT? A. DISTANCE AND TIME B. DISTANCE AND DIRECTION C. POSITION AND TIME D. POSITION AND DIRECTION
3 WHICH OF THE FOLLOWING FORCES CAN ACT ONLY WHEN TWO OBJECTS ARE IN CONTACT WITH EACH OTHER? A. ELECTRIC FORCE B. GRAVITATIONAL FORCE C. MAGNETIC FORCE D. FRICTION FORCE
4 WHICH EXAMPLE SHOWS NEWTON S SECOND LAW OF MOTION? A. A GIRL STANDING ON A BUS THAT STOPS AT A STOPLIGHT. THE BUS LURCHES FORWARD AND HER BODY IS JERKED BACKWARD. B. A PITCHED BASEBALL GOES FASTER THAN THE ONE THAT IS GENTLY THROWN. C. CAMPERS DIG THEIR PADDLES INTO THE WATER AND PULL THEM BACKWARD. THE CANOE MOVES FORWARD. D. THE JET FUEL IN A ROCKET BURNS AND PRODUCES A POWERFUL BLAST OUT THE BACK OF THE ROCKET. THE ROCKET ZOOMS FORWARD.
5 MELANIE WATCHED THE PATH A BASEBALL FOLLOWED AFTER A PITCHER THREW IT. SHE NOTICED THAT THE BALL TRAVELED HORIZONTALLY AWAY FROM THE PITCHER, AS WELL AS DOWNWARD TOWARD THE GROUND. WHAT FORCE CAUSED THE BALL TO ACCELERATE IN THE DOWNWARD DIRECTION WHEN IT WAS THROWN? A. GRAVITATIONAL FORCE B. ELECTRICAL FORCE C. AIR RESISTANCE D. APPLIED FORCE
6 WHICH OF THE FOLLOWING FORCES CAN ACT BETWEEN TWO OBJECTS THAT ARE NOT TOUCHING? A. FRICTION FORCE B. APPLIED FORCE C. SPRING FORCE D. ELECTRICAL FORCE
7 IN WHAT DIRECTION DOES GRAVITY PULL ALL OBJECTS ON EARTH? A. TOWARD YOUR FEET B. TOWARD EARTH S CENTER C. TOWARD THE NORTH POLE D. TOWARD THE SOUTH POLE
8 WHICH OF THE FOLLOWING IS A DEFINITION OF MOTION? A. A CHANGE IN POSITION OVER TIME B. THE SPEED AND DIRECTION OF AN OBJECT C. THE LENGTH OF THE PATH BETWEEN POINTS D. LOCATIONS A LOCATION COMPARED TO OTHER
9 AN ELEVATOR TRAVELED 15 FLOORS (150 FT) AT A SPEED OF 4.5 M/S. WHAT ADDITIONAL INFORMATION IS NEEDED TO DETERMINE THE VELOCITY OF THE ELEVATOR? A. THE DIRECTION THE ELEVATOR TRAVELED B. HOW LONG THE ELEVATOR WAS STATIONARY C. HOW MANY TIMES THE ELEVATOR STOPPED D.THE TOTAL DISTANCE THE ELEVATOR TRAVELED
10 JOANNA S FAMILY DROVE 180 KM TO VISIT RELATIVES IN JACKSONVILLE. JOANNA RECORDED THE DISTANCE THEY TRAVELED EACH HOUR. THE ENTIRE TRIP TOOK 3 H. WHAT WAS THE AVERAGE SPEED? A. B. 45 KM/H 60 KM/H C. 120 KM/H D. 180 KM/H
11 WHICH EXAMPLE SHOWS NEWTON S THIRD LAW OF MOTION? A. CAMPERS DIG THEIR PADDLES INTO THE WATER AND PULL THEM BACKWARD. THE CANOE MOVES FORWARD. B. AN ICE SKATER PUSHES HARDER WITH HIS LEG MUSCLES AND HE BEGINS TO MOVE FASTER. C. A GIRL STANDING ON A BUS THAT STOPS AT A STOPLIGHT. THE BUS LURCHES FORWARD AND HER BODY IS JERKED BACKWARD. D.A PITCHED BASEBALL GOES FASTER THAN THE ONE THAT IS GENTLY THROWN.
12 ANDRE BOARDED A TRAIN AT LINCOLN STATION. THE TRAIN LEFT THE STATION AT 9:10 P.M. AND TRAVELED, WITHOUT STOPPING, 6 MILES TO UNION STATION. WHAT ADDITIONAL INFORMATION DOES ANDRE NEED TO FIND THE AVERAGE SPEED OF THE TRAIN FROM LINCOLN STATION TO UNION STATION? A. THE DIRECTION THE TRAIN TRAVELED B. THE TIME THE TRAIN LEFT UNION STATION C. THE INITIAL AND MAXIMUM SPEEDS OF THE TRAIN D.THE TIME THE TRAIN ARRIVED AT UNION STATION
13 WHAT IS GRAVITY? A. THE FORCE THAT PUSHES ALL OBJECTS TOWARD EARTH B. THE FORCE THAT PULLS ALL OBJECTS TOWARD ONE ANOTHER C. A MAGNETIC FORCE THAT IS STRONGEST AT EARTH S POLES D. HEAT ENERGY THAT COMES FROM DEEP BENEATH EARTH S SURFACE
14 A MOVING OBJECT COLLIDES WITH A STATIONARY OBJECT. WHICH OF THE FOLLOWING STATEMENTS IS TRUE ACCORDING TO NEWTON S THIRD LAW OF MOTION? A. EACH OBJECT EXERTS A FORCE ON THE OTHER, AND THE TWO FORCES ARE EQUAL AND IN OPPOSITE DIRECTIONS. B. EACH OBJECT EXERTS A FORCE ON THE OTHER, AND THE TWO FORCES ARE THE SAME IN MAGNITUDE AND DIRECTION. C. EACH OBJECT EXERTS A FORCE ON THE OTHER, AND THE TWO FORCES ARE PROPORTIONAL TO THE MASSES OF THE OBJECTS. D. THE MOVING OBJECT EXERTS A FORCE ON THE STATIONARY OBJECT, BUT THE STATIONARY OBJECT DOES NOT EXERT A FORCE ON THE MOVING OBJECT.
15 THE ACCELERATION OF A FALLING OBJECT DOES NOT DEPEND ON ITS MASS. HOW DOES THE MASS OF AN OBJECT AFFECT THE FORCE OF GRAVITY EXPERIENCED BY THE OBJECT? A. THE FORCE OF GRAVITY INCREASES AS MASS INCREASES. B. THE FORCE OF GRAVITY DECREASES AS MASS INCREASES. C. THE FORCE OF GRAVITY IS THE SAME FOR ALL OBJECTS BECAUSE ACCELERATION IS THE SAME. D. THE FORCE OF GRAVITY IS THE SAME FOR ALL OBJECTS BECAUSE THE FORCE IS DETERMINED BY EARTH S MASS.
16 ACCORDING TO NEWTON S SECOND LAW, ONE FACTOR IN DETERMINING THE FORCE OF AN OBJECT IS ITS MASS. WHICH OF THE FOLLOWING IS THE OTHER FACTOR THAT DESCRIBES FORCE? A. ACCELERATION B. GRAVITY C. INERTIA D. WEIGHT
17 WHAT CAUSES A MOVING OBJECT TO CONTINUE MOVING AT THE SAME VELOCITY UNLESS AN UNBALANCED FORCE ACTS ON IT? A. ACCELERATION B. FRICTION C. GRAVITY D. INERTIA
18 WHAT IS THE UNIT OF FORCE IN THE METRIC SYSTEM? A. JOULE B. KILOGRAM C. NEWTON D. POUND
19 WHICH EXAMPLE SHOWS NEWTON S FIRST LAW OF MOTION? A. A PITCHED BASEBALL GOES FASTER THAN THE ONE THAT IS GENTLY THROWN. B. THE JET FUEL IN A ROCKET BURNS AND PRODUCES A POWERFUL BLAST OUT THE BACK OF THE ROCKET. THE ROCKET ZOOMS FORWARD. C. AN ICE SKATER PUSHES HARDER WITH HIS LEG MUSCLES AND HE BEGINS TO MOVE FASTER. D.A GIRL STANDING ON A BUS THAT STOPS AT A STOPLIGHT. THE BUS LURCHES FORWARD AND HER BODY IS JERKED BACKWARD.
20 TWO BOYS ARE GOING CANOEING. THE FOLLOWING PICTURE SHOWS THE FORCE OF A PUSH AND A PULL. WHAT IS THE NET FORCE THE BOYS ARE APPLYING TO THE CANOE? A. 20 N B. 70 N C. 90 N D. 160 N
21 SOME FORCES ACT AT A DISTANCE. OTHER FORCES ACT ONLY WHEN TWO OBJECTS ARE IN DIRECT CONTACT. WHICH FORCE CAN ACT ACROSS A DISTANCE? A. THE FORCE OF FRICTION B. A NORMAL FORCE C. A MECHANICAL FORCE D. THE MAGNETIC FORCE
22 WHICH OF THESE IS EVIDENCE THAT AN UNBALANCED FORCE IS ACTING ON AN OBJECT? A. THE MASS OF THE OBJECT IS CHANGING. B. THE OBJECT REMAINS AT REST. C. THE MOTION OF THE OBJECT IS CHANGING. D.THE OBJECT CONTINUES MOVING IN A STRAIGHT LINE AT CONSTANT VELOCITY.
23 WHICH IS AN EXAMPLE OF CENTRIPETAL ACCELERATION? A. AN OBJECT AT REST B. AN OBJECT MOVING IN A CIRCLE AT 20 M/S C. AN OBJECT MOVING AT 20 M/S BACKWARD, THEN 20 M/S TO THE RIGHT D.AN OBJECT MOVING IN A STRAIGHT LINE AT A STEADY SPEED OF 20 M/S FORWARD
24 WHAT IS ACCELERATION? A. THE DIRECTION OF MOTION B. THE RATE AT WHICH VELOCITY CHANGES C. AN OBJECT S SPEED MULTIPLIED BY ITS MASS THE RATE AT WHICH AN OBJECT S POSITION CHANGES D.
25 A PLANE GOES FROM 500 MI/HR TO 400 MI/HR. WHAT TYPE OF ACCELERATION DOES THIS EXAMPLE SHOW? A. POSITIVE ACCELERATION B. CENTRIPETAL ACCELERATION C. NEGATIVE ACCELERATION D. NOT ENOUGH INFORMATION
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