Motion & Units
A rocket travels 1.2 km in 75 seconds. Convert this speed into meters per second and kilometers per hour
16 m/s and 57.6 km/h
x/4 + 2 = 6
x = 16
An astronaut jogs 1.2 km in 10 minutes. What is their speed in km/min and m/s?
0.12 km/min and 2 m/s
What force are we ALWAYS experiencing?
The force of gravity
Which is the farthest planet in our solar system?
Neptune
Two objects are moving: object A at 40 cm/s and object B at 0.5 m/s. Which object is faster and by how much (in cm/s)
Object B, by 10 cm/s
0.2x - 3 = 1.4
x = 22
The Sun is approximately 149,600,000 km from Earth. Write this in scientific notation.
1.496 x 10^8
Which of Newton’s laws explains why you need to push a stationary rocket for it to launch?
Newton’s 1st Law (Inertia)
What was the question and answer to our first "Before you begin..." exercise?
How do you organize a space party? You planet
A paper airplane travels 2.5 meters in 0.6 seconds. You throw another one that flies 3.1 m in 0.75 seconds. Which had the greater speed, and what were their speeds in m/s?
Plane 1: 4.17 m/s, Plane 2: 4.13 m/s — Plane 1 is slightly faster.
(3x - 1)/5 = 2.6
x = 4.67
At Newton's third law station, what happened when you hit the objects with an increase in speed?
There was a greater force, so it travelled a farther distance.
You apply the same force to a ping pong ball and a tennis ball. Which accelerates more, and why?
The ping pong ball — it has less mass, and a = F/m
What were the 4 questions that the groups created for our bar graphs?
What is your favourite subject, if you could only drink one drink forever what would it be, if you had to live in the same country for the rest of your life what would it be, what is your favourite/least favourite food
A student runs 3.2 km in 18 minutes. Another cycles 2,800 meters in 5 minutes. Who was moving faster in m/s?
Runner: 2.96 m/s, Cyclist: 9.33 m/s → The cyclist was faster.
(x + 4)/3 + 2 = 10
x = 20
-150 F converted to K
172 K
A balloon rocket launches forward when you let go. Which law does this show, and why?
Newton’s 3rd Law — the escaping air pushes backward, so the rocket moves forward.
When you graphes your 3 different times and distances for the "Walk the Line" activity, what did you notice about the steepness of the fast, normal and slow line?
Fast - steepest, normal - in between, slow - flatest
G(2x + 5)/4 + 1.5/3 = 5
x = 6.5
If the universe is expanding, why don't the sizes of galaxies expand as well?
The galaxies are held together by gravity which is stronger than the effects of the expansion (only things that are far apart and not gravitationally bound are affected by it).
You throw a ball and it eventually lands. What two main forces acted on it after release?
Gravity pulling it down and air resistance slowing it down.
What was the name of the mission that was a huge breakthrough in space exploration and space history
The Rosetta Mission