What unit would you use to measure the volume of water in a lake?
Liters
100
The SI unit of weight is the ______________
Newton
100
Objects with less mass have _______________ inertia than objects with greater mass.
less
100
What do D, M and V stand for in the density equation?
D = density M = mass V = volume
100
The amount of matter in an object is its _______________
a. Volume b. Length c. Meniscus d. Mass
Volume
200
What three dimensions are needed to find the volume of a rectangular prism?
Length, width and height
200
_______________ is measured using a spring scale.
Weight
200
What is inertia?
The tendency of an object to keep doing what it is doing (stay at rest or keep moving in the same direction).
200
Object A and Object B have the same volume, but object B has less mass. Which has greater density?
Object A
200
Which would be more awkward to carry, a kg of bricks or a kg of balloons? Explain.
A kg of balloons because it would have WAY more volume than a kg of bricks.
300
What is a meniscus?
The curve at a liquid's surface. Volume is measured at the bottom of the meniscus.
300
What is the main difference between mass and weight?
Weight changes with location, mass doesn't.
OR
Mass is the measure of the amount of matter in an object and Weight is the measure of gravitational force on an object.
300
_____________ is a measure of inertia.
Mass
300
Ms. Boyle's coffee thermos has a density of 0.98 g/cm3. Would it float in water? Explain.
Yes, because water has a density of 1 g/cm3 and
Ms.B's thermos has less density, it would float.
300
In our "layered liquids" activity, where was the least dense liquid found?
On the top.
400
Explain in 4 steps how to find the volume of a rock.
1. Fill beaker 600 ml of water.
2. Submerge rock.
3. Record the new water level.
4. Subtract original water level from new water level.
400
What is the only way to change the mass of an object?
Add or remove matter from the object.
400
What is needed to cause an object in motion to change direction or speed?
Force
400
What is the density of Mr. Lindbloom's brain?
Mass = 1,679 grams
Volume = 992 cm3
(answer rounded to nearest hundredth - include units)
1.69 g/cm3
400
Ice and water are both made of the same thing - H20 So, why does ice float in water?
Ice has air pockets in it, making it less dense than pure water.