Type of force
Which force is responsible for slowing down a moving object on a surface?
Answer: Frictional Force. It is a contact force that acts in the opposite direction of motion
How do you find velocity
dissplacement / time
What is Wavelength?
a unit of distance for measuring waves
What factors affect gravity?
Gravitational force increases if the mass of the objects increases and decreases if the distance between them increases.
AU
What type of force is exerted by a rope, cable, or string when pulled tight?
Answer: Tension Force. It is a contact force pulling an object.
You are driving to a city 60 miles away.
First 30 miles: You drive slowly, averaging only 30 mph
Next 30 miles: You want to make up time, so you drive faster, averaging 60 mph
40
What is an ion?
atoms or molecules that have a charge due to
having lost or gained electrons
Is gravity a force or a curve?
Newton described gravity as a force, while Einstein described it as the bending of space and time.
How are elements arranged?
By increasing atomic number
What type of force makes a refrigerator magnet stick to a metal surface?
Answer: Magnetic Force. A type of non-contact force.
What's the formula for density
mass / voulme
What are cations?
positively charged ions that have lost e-
What is escape velocity?
The speed needed to break free from a planet's gravity, which depends on the planet's mass and radius, not the object's mass.
What are vertical columns called?
Groups or Families; they share similar chemical properties due to having the same number of valence electrons.
What is the force in a stretched rubber band or compressed spring?
Answer: Elastic Force (or Spring Force). It attempts to return the object to its original shape.
formlua of speed
distance / time
What are anions?
negatively charged ions that have gained e-
Does gravity affect light?
Yes, gravity can bend light, a principle of general relativity.
What are horizontal rows called?
Periods; they indicate the number of electron shells.
What are the four fundamental forces of nature?
Answer: Gravitational, Electromagnetic, Strong Nuclear, and Weak Nuclear forces
A high-performance electric car starts from rest and accelerates at a constant rate of 4.0 m/s^2 for 8.0 seconds. It then maintains its top speed for 20.0 seconds. Finally, the driver slams on the brakes, causing a uniform deceleration of 10.0 m/s^2 until the car comes to a complete stop.
32 and 0
How do electrons jump between energy levels without passing through?
how they jump between energy levels without passing through the space in between, why they don't fall into the nucleus, and what "shape" they actually have
What happens at the center of the Earth?
Gravity would not be felt at the exact center because the surrounding mass would cancel itself out.
Why does Nickel appear after Cobalt, despite having a lower average atomic mass?
Answer: Due to atomic structure, specifically the atomic number.