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- Multiple ChoicePlease save your changes before editing any questions.
At what position does the pendulum have the greatest gravitational potential energy?Position DPosition CPosition B - Multiple ChoicePlease save your changes before editing any questions.Which character has the greatest gravitational potential energy?Character ACharacter BCharacter CCharacter D
- Multiple ChoicePlease save your changes before editing any questions.Which skier has the greatest kinetic energy?Skier ASkier BSkier CSkier D
- Multiple ChoicePlease save your changes before editing any questions.A girl on a motorbike passes by at a speed of 15 m/s. Her mass is 40 kg. What is her kinetic energy?300 Joules600 Joules950 Joules4500 Joules
- Multiple ChoicePlease save your changes before editing any questions.Calculate the potential energy of a roller coaster at the top of a 72 m hill that has a mass of 112 kg.79,027 J790,720 J7,020 J790,700 J
- Multiple ChoicePlease save your changes before editing any questions.
Energy is measured in _________.
joules
kilometers
newtons
meters per second
- Multiple ChoicePlease save your changes before editing any questions.
A ball has 100 J of potential energy when it is on a shelf when its not moving. The ball gets bumped off the shelf and starts falling- what happens to the total energy of the system?
Greater than 100 Joules because it is speeding up
exactly 100 Joules
Less than 100 Joules because the energy is lost
none of these
- Multiple ChoicePlease save your changes before editing any questions.
Energy is the ability to cause _________.
change
problems
channels
solutions
- Multiple ChoicePlease save your changes before editing any questions.What is the net force?40 N left0 N Balalnced400 N right40 N right
- Multiple ChoicePlease save your changes before editing any questions.If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?150 Newtons15 Newtons150 kilograms100 kilograms
- Multiple ChoicePlease save your changes before editing any questions.How much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?36 N12 N3 N0.33 N
- Multiple ChoicePlease save your changes before editing any questions.If the same force was applied to both shopping carts, which cart will have more acceleration?The empty shopping cartThe shopping cart that's fullThey will be the same
- Multiple ChoicePlease save your changes before editing any questions.What is the acceleration of an object traveling at a constant velocity?10 m/s20 m/s2250 m/s220 m/s2
- Multiple ChoicePlease save your changes before editing any questions.How much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?36 N12 N3 N0.33 N
- Multiple ChoicePlease save your changes before editing any questions.
Newton’s 3rd law states that for every action, there is an ________ reaction.
unequal and opposite
equal and similar
stronger and opposite
equal and opposite
- Multiple ChoicePlease save your changes before editing any questions.
When a heavy football player and a light one run into each other, who exerts more force on the other?
The light one
The heavy one
Their forces are equal
- Multiple ChoicePlease save your changes before editing any questions.
You hit a wall with a stick. The equal but opposite reaction is _____
the wall pushes against you
the stick pushes against you
the wall pushes against the stick
you push against the stick
- Multiple ChoicePlease save your changes before editing any questions.
When a small car pushes a big truck, the truck applies an equal and opposite force on the car.
False
True
- Multiple ChoicePlease save your changes before editing any questions.
unit for force?
gram
m/s
newton
meter
- Multiple ChoicePlease save your changes before editing any questions.Collisions can be ____________or ___________.fast or slowfar or nearelastic or inelasticnone of the above
- Multiple ChoicePlease save your changes before editing any questions.What makes it possible to determine the motion of objects before or after colliding?Conservation of EnergyConservation of StrengthConservation of MomentumConservation of Homework
- Multiple ChoicePlease save your changes before editing any questions.What is the the total momentum of the red and blue ball before the collision?16 kg m/s32 kg m/s2 kg m/s6 kg m/s
- Multiple ChoicePlease save your changes before editing any questions.In this type of collision, objects tend to "stick" together.elasticinelasticThey "stick" together in both types of collisions
- Multiple ChoicePlease save your changes before editing any questions.While playing pool, Emma notices that the pool balls bounce apart. What type of collision is this?ElasticInelasticExplosiveForce