NEW
Font size
WorksheetsEnergy, Motion and Force Test Review
Total questions: 19
Worksheet time: 10mins
Mechanical energy is the sum of two types of energy - kinetic energy and potential energy. Which is an example of kinetic energy?
a snail crawling across a leaf
a computer monitor sitting on a desk
a tightly wound spring in a windup toy
a roller coaster car just before it goes downhill
Which of these is an example of the conversion of gravitational potential energy into kinetic?
a person running on a track
an apple falling from a tree to the ground
a wind-up spring making a toy car move across the floor
a rubber band being stretched to twice its normal length
A skydiver jumps out of a plane. He falls downward at a very fast speed. When he opens his parachute, he slows down. He falls at a safer pace until he lands. What force pulled the skydiver to the ground?
friction
gravity
air resistance
parachute pull
What is the scientific meaning of energy?
anything that has mass
the ability to cause change
anything that cannot be seen
the property of something to take up space
A moving object collides with a stationary object. Which of the following statements is true according to Newton's third law of motion?
Each object exerts a force on the other, and the two forces are equal and in opposite directions
Each object exerts a force on the other, and the two forces are the same in magnitude and directions
Each object exerts a force on the other, and the forces are proportional to the masses of the object
The moving object exerts a force on the stationary object, but stationary object does not exert a force on the moving object
Which of these is an example of the conversion of elastic potential energy into kinetic energy?
a person running on a track
an apple falling from a tree to the ground
a windup spring making a toy car move across the floor
a rubber band that is being stretched to twice its normal length
Which two measurements are needed to determine the speed of an object?
distance and time
distance and direction
position and time
position and direction
What describes the tendency of a moving object to continue moving at the same velocity?
accerleration
friction
gravity
inertia
What is the unit of force in the metric system?
joule
kilogram
newton
pound
Which of these is evidence that an unbalanced force is acting on an object?
the mass of the object is changing
the object remains at rest
the motion of the object is changing
the object continues moving in a straight line at constant velocity
A rock is resting on top of a hill. The rock suddenly begins moving down the side of the hill. Why did the rock begin to move?
an unbalanced force acted on the rock and caused it to move
a sudden change in gravitational force caused the rock to begin to move
balanced forces caused the rock to move, and the gravity kept it moving
an upward force balanced the gravitational force, so the rock began to move
What must two objects have for gravity to exist between them?
mass
volume
solidness
roundness
Which of the following objects has the greatest gravitational force?
the object with the largest mass
the object with the smallest mass
the object with the fastest speed
the object with the slowest speed
To produce change in motion, a force must be a(n)
balanced force
unbalanced force
frictional force
gravitational force
What would happen if an object were pulled with the same force in two different directions?
The forces would be unbalanced
The forces would cancel each other out
the forces would reinforce each other
the forces would accelerate
Dividing the total distance traveled by the total time is how to calculate
average speed
average time
average acceleration
average motion
An unbalanced force acting on an object
can change the object's direction but not the speed
can change the object's speed but not the direction
can change the object's speed or direction but not both
can change the object's speed, direction, or both
What is net force?
The combination of all forces acting on an object
a push or pull
the tendency of an object to resist a change in motion
a force that attracts all matter to each other
Matt and Kim use bowling balls with different masses. If they both roll their balls at exactly the same speed, which claim could be supported by the evidence?
the bowling ball with less mass has more kinetic energy
the bowling ball with more mass has more kinetic energy
the kinetic energies are the same
there is not enough information to compare kinetic energies
