Newton 1
Newton 2
Newton 3
measurement and laws
Newton
Problems
100
What is the resistance to a change in motion called?
What is inertia
100
If something with a mass of 40 kg, is pushed with a force of 120N, what is the acceleration of the object?
3 m/s2
100
The Unit of force is this.
What is the Newton?
100
This states that an object’s motion will not change unless an unbalanced force acts on the object.
What is Newton's First Law?
100
The unit of distance.
meters, centimeters, kilometers
100
What is the difference between speed and velocity?
direction
200
One object pushing on another will always receive a push in return. True or false.
True
200
This property of matter increases with its mass.
What is inertia?
200
As the fuel burns in a rocket and gases push against the rocket, moving it upward this explains which of Newtons laws.
Newton's Third Law
200
This natural law states that for every action, there is an equal and opposite reaction.
What is Newton’s Third Law?
200
If you put a notecard on a cup, and a penny on top of the notecard and flick the card so the penny falls in the cup, which force is acting on the penny so it falls down?
gravity
200
A train takes 5 seconds to travel 15 meters. What is the train's speed?
3 m/s
300
What causes a ball that has been kicked across the ground to stop?
Friction
300
Formula for spring constant
K=F/D
300
A 40.-newton weight is attached to a spring, causing it to stretch. Unstretched is 0.20m. Stretched, it is at 1m. What is the spring constant of this spring?
A. 0.50 N/m
B. 0.25 N/m
C. 20. N/m
D. 40. N/m
0.50 N/m
300
72 N weight is lifted upward with an acceleration of 2.0 m/s² using a frictionless pulley. What force is required?
A. 0.0 N
B. 15 N
C. 72 N
D. 87 N
87 N
300
If someone is pushing a box with 15 Newtons and it accelerates at 5m/s2 , what would the mass of the box be?
3 kg or 3 g
300
If two rocks with different masses are rolling down a hill, will the bigger rock, or smaller rock take more force to stop?
the bigger rock
400
m/s2
How do you write the unit for acceleration?
400
What is the spring constant
200
400
an object in motion stays in motion unless acted upon by an outside force, is an example of which law?
Newton's first law
400
Which law? F=mxa
Newton's 2nd law
400
This is the tendency of an object to resist a change in its motion.
What is inertia?
400
On the board
Which of the following correctly ranks the distances ΔxA, ΔxB and ΔxC that each block is lowered?
a. ΔxA > ΔxB and ΔxC
b. ΔxB > ΔxA and ΔxC
c. ΔxC >ΔxB and ΔxB
d. ΔxD > ΔxB and ΔxC
ΔxC >ΔxB and ΔxB
500
A rope of negligible mass supports a block that weighs 40N, as shown below. The breaking strength of the rope is 90N. The largest acceleration that can be given to the block by pulling up on it with the rope without breaking the rope is most nearly
A. 6 m/s2
B. 6.7 m/s2
C. 10 m/s2
D. 12.25 m/s2
D
500
Ella stands in an elevator. The elevator starts from rest and travels from the third floor to the fifth floor of the building. Which of the following forces has a magnitude equal to the person's weight during the entire elevator ride?
a. The gravitational force exerted by the elevator on
the person
B. The gravitational force exerted by the person on
Earth
C. The normal force exerted by the elevator on the
person
D. The normal force exerted by the person on the
elevator
The gravitational force exerted by the person on Earth
500
Two blocks of 5 kg and 10 kg are pushed together on a frictionless surface with a force of 30 N. What is the acceleration of the system?
A. 1 m/s²
B. 2 m/s²
C. 3 m/s²
D. 6 m/s²
2 m/s²
500
Bashira holds a string that is attached to a box. She allows the box to move straight downward at a constant speed. The weight of the box is 5 N. Which of the following claims about the tension in the
string is correct?
A. The tension must be zero.
B. The tension must be less than 5 N but greater
than zero.
C. The tension must be equal to 5 N.
D. The tension must be greater than 5 N.
The tension must be equal to 5 N.
500
A 50 N force stretches a spring by 0.25 m. What is the spring constant?
A. 50 N/m
B. 100 N/m
C. 200 N/m
D. 250 N/m
200 N/m
500
A 12 N force is applied horizontally to two blocks on a frictionless surface. Block A has a mass of 1 kg, and block B has a mass of 2 kg. What is the acceleration of block B?
A. 6.0 m/s²
B. 2.0 m/s²
C. 3.0 m/s²
D. 4.0 m/s²
4.0 m/s²