Geological Timeline
Natural Selection and Adaptations
Evolutionary Relationships
Physics Calculations
RANDOM!
100
Determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called ____.
Relative Age Dating
100
True or False: All mutations are bad.
False
100
Traits that are similar in structure but different in function are known as __________________ structures.
homologous
100
You give a shopping cart a shove down the isle. The cart is full of groceries and has a mass of 12 kg. The cart accelerates at a rate of 4 m/s2 . How much force did you exert on the cart?
48 Newtons (N)
100
Lizzie is pushing Alex on a scooter. Lizzie is pushing with 25 N of force to the left, and Alex is helping with 10 N to the left. What is the net force on the scooter?
35 N
200
Which rock layer is the oldest?
Layer N
200
Although Darwin did not know about genes, he could see that animals of the same species who had slight variations that helped them to survive longer could produce more offspring than animals who were not as well equipped. What process is this an example of?
Natural Selection
200
Sharks, Penguins, and Dolphins all have fins that propel them in the water. Their function is the same but their structure is different. These are __________ structures.
Analogous
200
A 22 N net force is applied to a rolling cart and produces and acceleration of 2 m/s2. What is the cart's mass?
11 kilograms (kg)
200
If you push on a wall with a force of 50 N, the force acting on you from the wall is what?
50 N
300
When part of the rock record is destroyed, the gap that forms is called a...
Unconformity
300
Mutations cause changes in what important product made by cells?
Proteins
300
The similarities in the development of these embryos suggest that they all share a ____________________.
Common ancestor
300
If a 5kg bowling ball is rolled down the bowling lane with a force of 16 N, what is the acceleration of the ball?
3.2 m/s2
300
A student is conducting an experiment to see how the mass of an object affects the force it exerts on a spring scale. The student uses masses of 100g, 200g, 300g, 400g, and 500g and measures the force in newtons using a spring scale. What is the independent variable?
The different masses of the objects
400
In which rock layer would you expect to find the most complex fossils?
Layer F
400
Humans can change an organism’s genes by choosing which organisms will reproduce. What is this process called?
Selective Breeding
400
Humans have wisdom teeth but they are no longer needed and are often removed. They are an example of __________________ structures.
Vestigial
400
A car going 40mph accelerates to pass a truck. Five seconds later the car is going 80mph. Calculate the acceleration of the car.
8 m/h/s
400
A student is conducting an experiment to see how the mass of an object affects the force it exerts on a spring scale. The student uses masses of 100g, 200g, 300g, 400g, and 500g and measures the force in newtons using a spring scale. What is the dependent variable?
The force (measured in Newtons)
500
List 2 of the 3 qualities that cause a fossil to be classified as an index fossil.
Possible answers:
- They lived a short period of time
- They had a wide distribution (lots of fossils everywhere)
- They were abundant (LOTS of these fossils)
500
Using technology, such as CRISPR, to change or alter a person's DNA is a type of artificial selection known as...
Genetic Engineering
500
If you were to be given two deceased unknown species and were asked to determine if they were related, what would be the best way to do make that determination?
Compare their bone structures.
500
An object with a mass of 2400 g has a force of 6.5 newtons applied to it. What is the resulting acceleration of the object? Round your answer to the nearest hundredth.
2.71 m/s2
500
When launched with a no cargo, a classroom balloon rocket will reach the classroom ceiling of 3 meters. Your teacher wants you to build a balloon rockets that can reach only 2 meters in height. What are two changes to the rocket that should you make to reduce the maximum height to 2 meters?
Add mass by adding cargo (paperclips)
Add less force (blow up the balloon less)