A6 n force pushing to the right on a box causes it to accelerate 3 m/s² to the right. what is the mass of the box?
a. 0.5 kg
b. 2 kg
c. 3 kg
d. 18 kg
a 4 kg object is being pulled to the east by a 6 n force. what is the object's acceleration?
a. 0.67 m/s², east
b. 0.67 m/s², west
c. 1.5 m/s², east
d. 1.5 m/s², west
which of these quantities has a direction associated with it?
a. mass only
b. force only
c. acceleration only
d. force and acceleration
acceleration is often measured in what unit?
a. newtons
b. kilograms
c. meters per second
d. meters per second squared
a 5 kg block is being pulled to the right by a rope tied to it. the block is accelerating at 2 m/s² to the right. how much force is being applied?
a. 3 n
b. 3.5 n
c. 7 n
d. 10 n
what type of forces accelerate masses?
a. balanced only
b. unbalanced only
c. balanced and unbalanced
if an object is acted on by a constant unbalanced force, the object will move with a constanwhich of these is a correct equation for force?
a. f = m × a
b. f = m ÷ a
c. f = a ÷ m

a. speed
b. velocity
c. acceleration
a 5 kg object is accelerating at 3 m/s² while being pulled. what is the magnitude of the force causing this acceleration?
a. 0.6 n
b. 1.7n
c. 2 n
d. 15 n
what is the mass of a rock if a 12 n unbalanced force acting on it causes the rock to accelerate at 4 m/s²?
a. 0.33 kg
b. 3 kg
c. 8 kg
d. 48 kg

Fill in the blanks with the numbers is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance