Physic's Chapter 5 & 6

To say there is no such thing as only one force means A) other forces, perhaps not evidence, are there B) there must also be a corresponding reaction force C) gibberish

You cannot exert a force on a wall A) unless you put your mind to it B) if the wall resists C) unless the wall simultaneously exerts the same amount of force on you

When you rub your hands together, you A) can push harder on one hand than the other B) cannot push harder on one hand than the other C) need more information

When you drop a rubber ball on the floor it bounces back. The force exerted on the ball to produce bouncing is by the A) ball B) floor C) need more information

As a ball bounces from a floor, it's acceleration off the floor between bounces is A) significantly more than g B) g C) slightly more than g D) significantly less than g

Your friend says that the heavyweight champion of the world cannot exert a force of 50 N on an isolated piece of tissuepaper with his best punch. You A) have reservations about this assertion B) disagree, for a good punch easily delivers this much force C) agree that it can't be done

One end of a rope is pulled with 100 N, while the opposite and also is pulled with 100 N. The tension in the rope is A) 50 N B) 0 N C) 100 N D) 200 N

A piece of rope is pulled by two people in a tug-of-war. Each exerts a 400 N force. What is the tension in the rope? A) 400 N B) 600 N C) zero D) 800 N E) none of the above

The winner in a tug-of-war exerts the greatest force on A) their opponent B) his or her end of the rope C) the ground

When a skateboarder pushes on a wall, A) an interaction occurs between the skateboarder in the wall B) such a push couldn't happen unless the wall post on the skateboarder C) The wall pushes on the skateboarder D) all of the above E) none of the above

A pair of action reaction forces always A) occur simultaneously B) comprise a pair of interactions C) act on the same object D) all of the above E) none of the above

When you walk, you push on the floor to the left and the floor A) both of these simultaneously B) also pushes on you to the left C) pushes you to the right D) can only wish it could push on you E) none of the above

For every action force, there must be a reaction force that A) is equal in magnitude B) is slightly larger and magnitude than the action force C) ask in the same direction D) is slightly smaller and magnitude then the action force

To produce an acceleration to a system there A) must be a net force on the system B) must be acceleration outside the system also C) May or may not be a net force on the system

The force exerted on the tires of a car that directly accelerate it along a road is exerted by the A) Engine B) road C) tires D) air E) none of the above

Neglecting air resistance, once a tossed ball leaves your hand A) you're tossing force remains well the ball goes upward B) you're tossing force remains until it comes to a stop C) only the fourth due to gravity acts on it D) no further forces act on it E) inertia becomes the force acting on it

When a ball falls downward, it may have a net force A) equal to its weight minus air drag B) equal to its weight C) zero D) any of the above E) none of the above

An automobile and a golf cart traveling at the same speed collide head on. The impact is A) greater on the automobile B) greater on the golf cart C) the same for both

A Mack truck and a Volkswagen traveling at the same speed have a head on collision. The vehicle that undergoes the greatest change in velocity will be there A) Volkswagen B) same for both C) Mack truck

Two people, one twice as massive as the other, attempt tug-of-war with 12 m of rope on frictionless ice. After a brief time, they meet. The heavier person slides a distance of A) 6 m B) 0 m C) 4 m D) 3 m

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

As a ball falls, the action force is the earths pull on the ball. The reaction force is the A) balls pull on earth B) acceleration of the ball C) air assistance acting against the ball D) none of the above

A pair of air pucks on an air table are set in motion when a compressed spring between them is released. If one puck moves with twice the speed of the other, then its mass is A) twice the mass as the other B) Half the mass of the other C) The same mass as the other D) need more information

The force that propels a cannonball when fired from a canon is A) equal and opposite to the force the ball exerts on the canon B) in some cases, equal and opposite to the fourth the bull exerts on the canon C) huge compared to the recoil force on the canon

When I cannonball is fired from a canon, which undergoes a greater acceleration? A) The recoiling canon B) The cannonball C) both the same

An astronaut of mass 70 kg weighs 700 N on earth surface. His weight on the surface of Mars, where the acceleration due to gravity is 3.7 m/s squared, would be about A) The same as on earth B) 370 N C) 130 N D) 260 N E) none of the above

An airplane travels at 141 km/h toward the northeast. What is it's component of velocity due north? A) 100 km/h B) 141 km/h C) 110 km/h D) 41 km/h

The airspeed of an airplane is 200 km/h. When it is caught in a 200 km/h crosswind, it's speed actress the ground below is A) 0 km/h B) 200 km/h C) 1600 km/h D) 283 km/h E) 400 km/h

Which has the greater momentum when moving? A) a container ship B) a bullet C) either of these depending on speed

A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, it's momentum is A) unchanged B) four times as much C) twice D) zero