# Motion, Forces And Energy Unit Test

37 Questions  I  By CharlieC23
Chapters: 1, 2, 5 and 6

Changes are done, please start the quiz.

 1 Potential energy that depends on height is gravitational potential energy.
 A. True
 B. False
 2 Plants convert electromagnetic energy to chemical energy.
 A. True
 B. False
 3 Friction acts in a direction __________ to the direction of an object's motion
 A. Unrelated
 B. Opposite
 C. Equal
 D. Perpendicular
 4 According to Newton;s second law of motion, acceleration increases as force increases, if mass stays the same.
 A. True
 B. False
 5 On the Celcius scale, the number 0 is assigned to the temperatures at which water condenses.
 A. True
 B. False
 6 An electric blanket converts electrical energy to
 A. Nuclear energy
 B. Chemical energy
 C. Mechanical energy
 D. Thermal energy
 7 A (n) ______________ can cause an objects motion to change
 A. Unbalanced force
 B. Balanced force
 C. Inertia
 D. Mass
 8 Potential energy is the energy
 A. Of velocity
 B. Of motion
 C. Of distance
 D. That is stored
 9 A moving object can do work so it has potential energy.
 A. True
 B. False
 10 A satellite in orbit around Earth is always falling toward Earth.
 A. True
 B. False
 11 Forces can be added together on if they are acting on different objects.
 A. True
 B. False
 12 The amount of matter in an object is called its
 A. Weight
 B. Force
 C. Inertia
 D. Mass
 13 Kinetic energy depends on
 A. Only mass
 B. Only velocity
 C. Height
 D. Mass and velocity
 14 Unless an object at rest is acted upon by a force, it stays at rest due to its
 A. Matter
 B. Inertia
 C. Friction
 D. Gravity
 15 Match the sentence with the apropriate word.
A. _____________ is the total energy of all of the particles in a substance
A.
B. The movement when heated fluid rises and is replaced by a cooler fluid is called a(n) _________________ current.
B.
C. The temperature at which a solid changes to a liquid is the ______________.
C.
D. A(n) __________________ is a device that transfers thermal energy from a cool region to a warm region.
D.
 16 The state of a substance depends ont he amound of thermal energy it posesses.
 A. True
 B. False
 17 A rider finishes a 120 km bicycle trip in 3 hours.  The average speed of the rider is....
 A. 360 km/hr
 B. 40 km/hr
 C. 3.6 m/s
 D. 4 m/s
 18 The law of conservation of energy states that when one form of energy is converted to another, SOME energy is destroyed.
 A. True
 B. False
 19 The force exerted by gravity is stronger if two objects are closer.
 A. True
 B. False
 20 A rubber band that is flying across the room is moving because it has kinetic energy.
 A. True
 B. False
 21 The force of friction acts between all objects in the universe.
 A. True
 B. False
 22 Match the sentence with the apropriate word.
A. An object is in motion if it is moving relative to a(n)
A.
B. To calculate acceleration, divide the change in ______________ by the time during which the acceleration occurs
B.
C. The velocity of an objectgives both its speed and
C.
D. You can calculate an average if you know both the total distance and the total time of a trip.
D.
 23 A 10-kg ball is accelerated 500m/s (squared) by a force of...
 A. 5000 N
 B. 50 N
 C. 500 N
 D. 1/50 N
 24 An airplane that moves 50 meters in one second has a speed of....
 A. 500 cm/s
 B. 180,000 m/h
 C. 1,800 km/h
 D. 5,000 m/h
 25 Patty was walking very quickly through the cafeteria with her tray full of food when she tripped over a broomstick and flew forward along with all of her food.   This is an example of Newton's first law of motion which states,  "...an obect in motion will stay in motion..."
 A. True
 B. False
 26 The formula, Work/ Time (Work divided by Time) is used to calculate
 A. Kinetic energy
 B. Potential energy
 C. Power
 D. Mechanical energy
 27 Jake and Tom want to see who is strogest, so they got a rope and decided to play tug-o-war.  Both boys pulled at the rope with all of their strength, but neither of them moved.   This is called unbalanced force.
 A. True
 B. False
 28 Power is the rate at which energy is lost.
 A. True
 B. False
 29 Work is the transfer of energy.
 A. True
 B. False
 30 A girl throws a ball 15m into the air.  The ball has a maximum potential energy at a height of
 A. 0m
 B. 5m
 C. 10m
 D. 15m
 31 A(n) ___________ causes objects to move in a circle
 A. Centripetal force
 B. Large weight
 C. Terminal velocity
 D. Acceleration
 32 The energy stored in fossil fuels is released by burning.
 A. True
 B. False
 33 An object cannot be accelerating if it is changing direction.
 A. True
 B. False
 34 Elastic potential energy is associated with objects that can be stretched.
 A. True
 B. False
 35 Your body converts chemical energy to all of the following EXCEPT
 A. Nuclear energy
 B. Thermal energy
 C. Chemical energy
 D. Electrical energy
 36 Temperature is a measure of the average potential energy of each particle within an object.
 A. True
 B. False
 37 Newtons second law of motion states the relationship of mass, acceleration and force.  It says that....
 A. Force equals mass divided by acceleration
 B. Force equals acceleration divided by mass
 C. Force equals mass times acceleration
 D. Every object attracts every other object in the universe
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