1
Determine if the force in the situation is balanced or unbalanced: a book on your shelf.
Balanced
Between wearing sneakers or stilettos, which will exert more pressure on your calves?
Stilettos
Determine if the force in the situation is balanced or unbalanced: a feather falling.
unbalanced
Does turning a doorknob create a moment?
Yes
What word describes the movement of molecule from higher concentration to lower concentration?
Diffusion
When temperature is increased, how will it affect the movement of particles?
The particles will move faster.
You have a bottle full of water with three holes where water is leaking out. The highest hole is labeled A, the middle hole is labeled B, and the lowest hole is labeled C. Among those holes, which one will leak water with the strongest pressure?
If a car moves 20 meters in 2 seconds, what is its speed?
10m/s
If a car traveling at 10 m/s covers 30 meters in 3 seconds and 40 meters in 4 seconds, how would you describe the car's movement? (speeding up, slowing down, constant)
constant
In biomagnification, what happens to the level of contaminants in an organism's body as it moves to a higher level in the food chain?
Increases/ will get magnified
What is the mass and charge of proton
Mass: 1
Charge: +1
What is the mass and charge of electron?
Mass: 0
Charge: -1
How would you calculate the purity of gold?
given purity / 24K x 100%
What has happened to the level of carbon dioxide in the atmosphere in the past 200 years?
The level of CO2 in the atmosphere increased.
If the angle of incidence is 78, what is the angle of reflection?
78
What happens to the speed of light as it travels from water to glass?
slowing down
What happens to the bending of light as it travels from water to glass? (towards or away from the normal)
towards the normal
What two colors of light should you use to make green grapes appear black?
Red and blue
What do you call the vast systems of stars, gas, and dust in outer space that are held together by gravity? They come in a variety of shapes and sizes and contain billions or even trillions of stars.
Galaxies
If Mercury is 5000 kilometers wide, and Vesta's diameter is a tenth of that, what is the diameter of Vesta?
500 kilometers
If growth refers to an increase in size of an organism, ___________ encompasses the progression of changes in complexity, function, and advancements in one's life.
Development
What type of joint is found in our knee?
Hinge joint
What will happen to your elbow joint when your bicep contracts?
your forearm will move closer to your upper arm.
If your building muscles, what nutrient should you increase in your diet? Identify three sources
If you have anaemia, what nutrient are you lacking?
Iron