PHYSICS MIDDLE SCHOOL

Which quantities indicate a direction and a magnitude?
Check all that apply.

Answers

Answer 1

Answer:

Answer: Acceleration and velocity

Explanation:

Just took the test

Answer 2

Answer:

Answer:

Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude. Although a vector has magnitude and direction, it does not have position.

Explanation:

The only thing I found in my notes for this question was this although it isn't in your choices, I just hope this helps you and hope you get it right!

Related Questions

How does a plane and parachute manipulate air resistance differently?
Two spheres exert a gravitational attraction on each other. Which of the following changes to this system would reduce the gravitational attraction by one half?
Why is foam a good insulator?
If a basketball player runs 15 m in a time of 3 s, what was the runners average velocity?
In which of these situations, is mechanical energy being conserved? (Neglect, air resistance, friction and breaking) Check all that apply.Child on a swingPendulumBow and ArrowRoller Coaster

As the mass and volume increases, the densit will
Increase, decrease, or remain the same

Answers

We can't tell from the information given.

Density is the RATIO of mass to volume. So, if mass and volume both
increase but their ratio decreases, then the density decreases.

But if mass and volume both increase and their ratio also increases,
then the density increases.

Examples:

-- Start with a pile of some kind of substance.
Mass = 150 grams
Volume = 100 cm³

Density = (mass) / (volume) = (150 gm)/(100cm³) = 1.5 gm/cm³

-- Add 50 grams of mass. Mass = 200 gm.
Add 50 cm³ of volume. Volume = 150cm³.

   Density = (mass) / (volume) = (200 gm)/(150 cm³) = 1.33 gm/cm³.
Density decreased.

-- To the original pile, add 100 grams of mass. Mass = 250 gm.
   add 50 cm³ of volume. Volume= 150 cm³.

   Density = (mass) / (volume) = (250 gm)/(150 cm³) = 1.67 gm/cm³.
Density increased.

-- To the original pile, add 60 grams of mass. Mass = 210 gm.
   add 40 cm³ of volume. Volume = 140 cm³.

   Density = (mass) / (volume) = (210 gm)/(140 cm³) = 1.5 gm/cm³.
     Density no change.
   Same as the original pile.

The space shuttle is located exactly half way between the earth and the moon. Which statement is true regarding the gravitational pull on the shuttle? (a)The moon pulls more on the shuttle. (b)The earth pulls more on the shuttle. (c)Both are equal due to equal distances.(d)Both are equal due to the mass of the shuttle.

Answers

Answer: B. The earth pulls more on the shuttle

Explanation:

Gravitational pull is directly proportional to the mass of the pulling body. In this case, earth's mass is larger than moon's mass, therefore, earth's gravitational pull on satellite will be greater than moon's gravitational pull on satellite.

If you weighted 130 lbs on Earth how much would you weigh on the moon?3500
21
350
130

Answers

Answer:

Explanation:

Weight on the moon is 16.5 % of weight on earth

Weight on moon = 0.165 * 130

Weight on moon = 21 lbs

Referencing the product below, what is one serving size in cups? Brown rice: 20 cups of rice per container Servings per container: 40

Answers

20cup/40cups= 1/2 cup per serving

Barry has a 10 kg object. He exerts a horizontal force which causes it to accelerate at 5 m/s2, moving it a distance of 20 m, horizontally. Calculate the work done by the force.