May The Force Be With You!
What in the World?
You Have So Much Potential
Shine Bright Like A Star!
Mystery Machine
100
De'Angelo is pushing a cart to the right with 37N of force to the north and Kingston decides to push the cart in the opposite direction with 12N of force. What will be the resulting motion of the cart?
It will continue moving to the north with 25N of force
100
give 2 facts about a nebula
- cloud of gas and dust
- star are formed in a nebula
- nebulas are bigger than stars but smaller than galaxies
-nebulas are part of galaxies
100
Give 2 facts about potential energy.
- potential energy is a stored energy
- the higher the object the more potential
100
How would you classify stars in area 2?
Cool and bright
100
What is the only object in the universe that produces its own light?
a star
200
What is acceleration?
A Change in velocity (speed or direction)
200
90% of all stars are ______________________ (type of star)
Main sequence
200
Give 2 facts about kinetic energy
- the energy of motion
- The faster it is moving the more kinetic
200
A scientist is using a wavelength of 4.23 x 10 ^-10 to look at stars what part of the EM spectrum are you using.
x- rays
200
What is the difference between speed and velocity?
They are the same but Velocity includes direction and speed and does not
300
The mass of a large car is 1000kg. How much force would be required to accelerate the car at a rate of 3 m/s2?
3000N
300
Define a galaxy
billions of stars (and the planets that go around them), gas and dust held together by gravity.
300
What point would have the most kinetic energy?
D
300
What is a comet?
a frozen ball that orbits a star and releases gases to create a fan-shaped tale when it gets heated by a star. It looks like a shooting star (but is not- a shooting star is actually a small space rock burning in the atmosphere called a meteor).
300
If a ball is kicked in space and it travels at 20km/h east, what will its velocity be after 5 minutes?
20km/h east (velocity doesn't change because there are no unbalanced forces in space)
400
An object produces a force of 2441N. The object has an acceleration of 10m/s2, what is the mass?
244.1kg
400
What type of stars would have a luminosity of 106 and a temperature of 20,000K
Blue Giants
400
An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s2 to reach a speed of 50.0 m/s as it left the bow. What is the net force on the arrow to the nearest Newton?
300N
400
Why do we get more energy from the sun than any other star?
It is closest star to earth so we get more heat and light (it appears brighter) than any other star.
400
What does the graph tell us about the motion of the object? (Hint: pay attention to the y-axis)
The object is accelerating at a constant rate. The y-axis is labeled as speed not distance!
500
Explain how a swimmer pushing against the wall of a pool is an example of Newton's 3rd law.
The action force is the swimmer pushing against the wall the reaction force is the wall pushing back with equal and opposite force and the swimmer moving forward.
500
How would you describe stars in area 3
Super hot and not very bright
500
Jasmine traveled a distance of 5 km to James's house, then 10 km to the store, and lastly, 5 km to the park. She traveled a total of 1.5 hours, what is her average speed?
13.3 km/h... for double points what is the speed in m/s?
500
Write 5 facts about the sun we have learned in this unit
yellow, Medium size, main sequence star, found about around the middle of HR diagram, Located on the outer edge of milky way galaxy, was formed in a nebula that is part of the milky way, closest star to Earth.
500
Where on the graph is there a constant speed?
between 0-15 seconds. Between 15-25 seconds the object is stopped.