Newtons Laws
An object at rest tends to remain at rest unless acted upon by an outside force.
Newton's First Law
A parachute on a racing dragster opens and changes the speed of the car from 85 m/s to 45 m/s in a period of 4.5 seconds. What is the acceleration of the dragster?
8.89 m/s2
A northbound plane travels 10,000 meters in 60 seconds. What is its velocity
166.67 m/s Northbound
An object at rest will remain at rest and an object in motion will remain in motion unless an unbalanced force acts upon the object is called
Newtons First Law
What are the particles called in an atom that are outside of the nucleus
Electrons
Newton’s first law of motion is commonly referred to as this.
The Law of Inertia
A car traveling at a speed of 30.0 m/s encounters an emergency and comes to a complete stop. How much time will it take for the car to stop if it decelerates at -4.0 m/s²?
7.5 s
A horse runs 500 meters in 25 seconds. What is its speed
20 m/s
is the tendency of all objects to resist any change in motion
Inertia
How many groups are on the periodic table and what do they tell us about the elements
18 and the number of valance electrons each group has.
Newton’s first law of motion applies to objects that are
moving or at rest
A car advertisement states that a certain car can accelerate from rest to 70 m/s in 7 seconds. Find the car's average acceleration.
10 m/s2
A bird flies south for 10 seconds and travels 15 meters. What is its velocity
1.5 m/s South
For every action there is an equal but opposite reaction
Newtons 3rd Law
Convert 3.78 kg to mg
3,780,000 mg
When a cannonball is shot into the air through an explosion, the cannon shooting the cannonball is pushed backwards after the explosion. This is an example of Newton's
3rd Law
While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile's acceleration
-.75 m/s2
A race car travels 50,000 meters in 7,200 seconds. What is its speed
6.94 m/s
SI unit of power
Watt
Which element must all living organisms have in order to be considered living
Carbon
Newton’s second law of motion states that force is equal to
mass x acceleration
If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s² for 3 seconds, what will its final velocity be
160 m/s
Cary runs for 1.5 seconds and travels 7.5 meters. What is her speed
5 m/s
A comparison--expressed as a percentage--of a machine’s work output with the work input; can be calculated by dividing work output by work input and then multiplying by 100.
Mechanical Efficiency
Which scientists said the atom is made up of mostly empty space.
Rutherford