Newton's Law of Motion

according to newtons third law, action and reaction are a. equal and in the same direction b. equal and in opposite directions c. unequal and in the same direction d. unequal and in the opposite directions

b

if 2 people are pulling against each other with forces of 500N and 600 N, there is a/an... a. balanced force b. unbalanced force c. weak force d. universal force

b

if you push on a wall with a force of 10 Newtons, the force acting on you is a. 0N b. 10N c20N d 30N

b

Which of Newton's Three Laws does the following statement satisfy? The relationship between an object's mass (m), its acceleration (a), and the applied force (f) is F=ma. Acceleration and force are vectors. This law requires that the direction of the acceleration vector is in the same direction as the force vectors. a. Newtons first law b. Newtons second law c. Newtons third law d. All of the above

B

the blood in your head rushes to your feet when riding on an elevator that is descending and abruptly stops. a. newtons first law b. newtons second law c. newtons third law d. all of the above

a

which law states the need to wear seatbelts? a. newtons first law b. newtons second law c newtons third law d. all of the above

a

which of newtons three laws does the following statement satisfy? An object at rest tends to stay at rest and an object in motion tends to stay in motion in a straight line at a steady speed until an unbalanced force acts upon it. a. newtons first law b. newtons second law c. newtons third law d. all of the above.

a

in the following example, what are the forces that are acting on the ball that is thrown in the air? Choose all that apply. While the ball is in the air, it will keep going the same velocity unless a force changes the velocity (speed and direction). a. air friction b. gravity c. resistance of the ground d. mass of the ball

a & b

the tendency of matter to remain in constant motion unless acted on by an outside, unbalanced force is called.. a. inertia b. acceleration c. momentum d. force

a.

which of newton's three laws does the following example illustrate? if you have a hockey puck sliding along a table, it will eventually come to a stop. a. newtons first law b. newtons second law c. newtons third law d. all of the above

b

when a women stands with two feet on a scale, the scale reads 300N. when she lifts one foot, the scale reads a. 0N b. 150 N c 300N d. 600N

c

Which of Newton's Three Laws does the following statement satisfy? For every action there is an equal and opposite reaction. a. Newtons first law b. Newtons second law c Newtons third law d. All of the above

c.

weight is best described as a. an objects resistance to acceleration b. what causes an object to fall c. the downward force exerted on an object due to gravity

c.

what is another name for the newtons first law of motion? a. law of acceleration b. law of velocity c. law of inertia d. law of mass

c.

a person is pulling west with 35 N of force against a person pulling east with 15 N of force. What is the net force? a. 50 N west b. 50 N east c. 20 N east d. 20 N east

d

2 people are pulling a refrigerator into a garage. one person is pulling south with 30 N of force, while the other person is pulling south with 25 N of force. a. 5N south b. 5N north c. 55N north d. 55N south

d.