Share Forces and motion
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Objects at rest tend to stay at rest because of the property of ………………
inertia
friction
air resistance
gravity
The distance traveled in an amount of time is called ………………
velocity
speed
acceleration
gravity
.……………… describes when a moving object speeds up.
gravity
velocity
speed
acceleration
…………… causes heat when rubbing your hands together.
inertia
gravity
air resistance
friction
…………………….pull objects downwards.
friction
gravity
air resistance
inertia
…………………….energy of a roller coaster is the energy of its motion.
stored
potential
kinetic
chemical
Because jaguars can run faster than sloths they move with more ………….energy than sloths
stored
potential
kinetic
chemical
If the amount of kinetic energy an object has is……….. , then the object will move faster.
increased
decreased
slow
fast
Objects moving tend to stay moving because of the property of ………………
friction
gravity
inertia
air resistance
How can you determine the speed of a moving train?
Multiply the distance traveled by the time spent moving.
Divide the distance traveled by the time spent moving.
Divide the time spent moving by the direction traveled.
Multiply the kinetic energy by the distance traveled.
A car traveled 100 kilometers in two hour. Which is the speed of the bus?
50 kilometers per hour
70 kilometers per hour
55 kilometers per hour
60 kilometers per hour
A marble has to roll down a ramp and then travel a distance of 3 m. The ramp’s height is supported by 4 books. When the marble rolls down, it travels only 2 meters. How can the ramp be modified to increase the distance the marble travels?
Make 6-book ramp
Make 1-book ramp
Make 3-book ramp
Make 4-book ramp
Forces that cause an object to move are called __________ forces.
gravity
unbalanced
friction
balanced
An object that is sitting still has _________forces acting on it
friction
balanced
gravity
unbalanced
A boy pushes on a box and moves it across the room. This is an example of ......
gravity
friction
unbalanced
balanced
Stretching a coil or spring increases its ______.
potential energy
speed
direction
kinetic energy
