Font size
WorksheetsMid-Year Benchmark Study Guide
Total questions: 32
Worksheet time: 20mins
Cornstarch is mixed into water. The mass of this mixture is 100g. The original mass of the corn starch was 25g. What was the original mass of the water before the cornstarch was added?
100g
75g
25g
125g
How are energy and work related?
Work is the opposite of energy.
Work is the act of creating energy to do something.
Energy is the ability to do work, and work is the force needed to move something.
Work and energy are not related.
When was the car not moving?
8am to 8:30am
8:30am to 8:45am
8:45am to 9am
The car moved constantly.
What are the intervals of time shown on the graph?
minutes
seconds
days
hours
What was the speed of the car between 0 hours and 0.75 hours?
40 km/h
22.5 km/h
30 km/h
0 km/h
Force is measured in....
Joules
Grams
Pounds
Newtons
Which way will the rope move, and with what force?
2200N to the RIGHT
200N to the RIGHT
1000N to the LEFT
2200N to the LEFT
The rope would NOT move when the forces are in _______ and ______.
PICK BOTH CORRECT ANSWERS!
the same direction
opposite directions
equal
different amounts
Newton's First Law states that:
objects at rest stay at rest, and objects in motion stay in motion without outside forces acting on them.
objects at rest will move, and objects in motion will stop without outside forces acting on them.
objects cannot truly be at rest, because of outside forces acting on them.
the motion of objects is always changing without outside forces acting on them.
Newton's 2nd Law states that the change in movement (acceleration) of an object depends on: (CHOOSE BOTH CORRECT ANSWERS!)
Net Force acting on the object
Potential energy of the object
Shape of the object
Mass of the object
Newton's 3rd Law states that for every ACTION...
there is an equal and opposite reaction.
there is a net force of zero.
acceleration occurs.
force equals mass times acceleration.
How could Newton's 2nd Law apply to the sediment that falls out of the moving water? (PICK BOTH RIGHT ANSWERS!)
If the sediment is too large (big mass) then sediment will fall.
If the river is not flowing hard enough (big force) then sediment will fall.
The sediment provides a reaction force against the river's flowing force.
The sediment will not fall out- an object in motion stays in motion.
Cracking the inner capsule of a glow stick and shaking it until it glows is an energy transformation from ______ to RADIANT energy.
Chemical
Kinetic
Mechanical
Light
Wind spinning a propeller connected to a generator is an example of ______ to ELECTRICAL energy.
Wind energy
Kinetic energy
Mechanical energy
Thermal energy
The sunlight striking a solar panel powers a home. This is an example of _______ to electrical energy.
Thermal energy
Kinetic energy
Radiant Energy
Chemical Energy
What is the difference between MECHANICAL energy and THERMAL energy?
Mechanical is the sum of Kinetic and Potential energy in a system, while Thermal is just Kinetic energy of particles.
Mechanical is the sum of Kinetic and Potential for a system, while Thermal is the sum of Kinetic and Potential in particles.
Mechanical is only the Kinetic energy of a system, while Thermal is the sum of Kinetic and Potential energy of particles.
Mechanical is only the Potential energy of a system, while Thermal is only the Kinetic energy of particles.
Which energy type is carried in electromagnetic waves and can excite matter in any state?
Radiant energy
Thermal energy
Sound energy
Nuclear energy
Which of the following is found in the nucleus of an atom?
Sound energy
Radiant energy
Nuclear energy
Mechanical energy
Which energy type is due to motion?
Kinetic
Potential
Sound
Nuclear
Which form of energy is stored due to interactions between objects or particles, or can depend on object positions?
Nuclear
Thermal
Kinetic
Potential
Convection does NOT occur in....
Gases
Liquids
Solids
The weather patterns outside, ocean water movement, and the way a room is heated are all examples of....
Convection
Conduction
Radiation
Wearing pajamas to get warm, a metal pot on a stove, and ice melting in hot water are all examples of....
Convection
Conduction
Radiation
CONDUCTION rarely occurs in _____ because the particles in this state are moving too fast to easily excite one another.
Solids
Liquids
Gases
Which is due to the circulation of warm and cool particles in a liquid or a gas?
Convection
Conduction
Radiation
Which is due to particles exciting one another through direct contact and collisions?
Convection
Conduction
Radiation
Which is an INSULATOR that does NOT allow electric current or thermal energy to pass easily? (CHOOSE ALL 3!)
Wood
Copper Wire
Rubber Eraser
Iron Nail
Plastic
Which is true of a liquid?
Definite volume, no definite shape
Can change to take the shape of its container
Will not expand to fill a container
All of the above are true of a liquid
According to the data, you can conclude that
Sand is the better insulator
Water is the better conductor
Water is the better insulator
Sand has a higher heat capacity
Which state of matter has the most orderly arrangement of molecules AND the smallest distance between molecules?
Ice
Steam
Water
Which picture is of matter with the lowest energy?
The man on the left pulls with a force of 75N. The man on the right pulls with a force of 175N.
The forces are unbalanced, so the rope will move RIGHT.
The forces are unbalanced, the rope will move LEFT.
The rope will not move, because the forces are unbalanced.
The rope will not move, because the forces are balanced.
