Newton's Laws
A soccer ball will remain stationary until an unbalanced force is acted upon. Which of Newtons 3 laws does this apply to?
Newton's 1st Law. An object at rest remains at rest, or if in motion, remains in motion at a constant speed unless acted on by an unbalanced force.
A 15-N force and a 45-N force act on an object in opposite directions. What is the net force on the object?
30N
Calculate the speed.
DISTANCE = 150 meters TIME = 30 seconds
5
A force of 40N is exerted on a 10kg box. What is the box's acceleration?
4
Which of the following is a good conductor of heat? Metal, non-metal, or metalloid.
Metal
What is the formula for Newton’s Second Law?
F=MA. Force = Mass * Acceleration
Two people push a box in the same direction, one with a force of 10 N and the other with a force of 15 N. What is the net force acting on the box?
25N
Calculate the distance.
SPEED = 8 meters/sec TIME = 2 sec
16
With what force will a car hit a tree if the car has a mass of 3,000 kg and it is accelerating at a rate of 2 m/s2?
6,000
Manganese is shiny, conducts heat and electricity, and can be hammered into thin sheets. What is is? Metal, non-metal, or metalloid.
Metal
A passenger lurches forward when a car suddenly stops because of this law.
Newton's First Law of Motion. AKA the law of inertia.
Two forces of 30 N each are applied to a box in opposite directions. What is the net force?
0 N (the forces are balanced).
A car travels a distance of 540km in 6 hours. What speed did it travel at?
90
A 10 kg bowling ball would require what force to accelerate it down an alleyway at a rate of 3 m/s2?
30
Neon is colorless, a poor conductor of heat and is not able to be stretched. How would it be classified? Metal, non-metal, or metalloid.
Nonmetal
The recoil of a gun after it is fired is due to this law.
Newton's 3rd Law. For every action, there is an equal and opposite reaction.
A box is pushed with a force of 50 N to the right, and friction opposes it with a force of 20 N to the left. What is the net force?
30 N to the right.
A girl cycles for 3 hours at a speed of 40km/h. What distance did she travel?
120
What is the acceleration of a softball if it has a mass of 0.50 kg and hits the catcher's glove with a force of 25 newtons?
50
I have an object that is dull, brittle, and an insulator, what is it? Metal, non-metal, or metalloid.
Non- Metal
When a person jumps off a small boat, the boat moves backward because of this law.
Newton's 3rd Law. For every action, there is an equal and opposite reaction.
A 10 N force pushes a box to the right, a 5 N force pushes it to the left, and a 15 N force pushes it to the right. What is the net force?
20 N to the right (10 N + 15 N - 5 N).
A train travels at a speed of 30mph and travels a distance of 240 miles. How many hours did it take the train to complete its journey?
8
Given a force of 88N and an acceleration of 4m/s2. What is the mass?
22
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? Metal, non-metal, or metalloid.
Metalliod