44 questions
Numbers in Science, especially physics, typically should also include...
...direction
...a unit
He is the one who invented the telescope and observed Gravity under an apple tree.
Isaac Newton (1643-1727)
Galileo Galilei (1564-1642)
Albert Einstein (1879-1955)
James Clerk Maxwell (1831-1871)
Watch the video and select the statements that relate correctly to what can be observed in the Universe
Players moving - Space
Ball moving - Time
Players moving - Matter
Ball moving - Energy
None of treh above
Weight is:
The change in position of an object over time
The total amount of force on an object
The amount of matter in an object
The effect of gravitational force on the mass of an object
A push or pull on an object that puts it in motion
Motion is:
The change in position of an object over time
The total amount of force on an object
The amount of matter in an object
The effect of gravitational force on the mass of an object
A push or pull on an object that puts it in motion
Force is:
The change in position of an object over time
The total amount of force on an object
The amount of matter in an object
The effect of gravitational force on the mass of an object
A push or pull on an object that puts it in motion
Net force is:
The change in position of an object over time
The total amount of force on an object
The amount of matter in an object
The effect of gravitational force on the mass of an object
A push or pull on an object that puts it in motion
Gravity is:
A branch of science that deals with matter, energy, motion, and force
A stationary object that can be compared to when there is a change in position
A force that opposes motion; can cause an object to slow or stop
Tendency of an object to resist change in motion. A property of matter
Force of attraction between two objects due to their masses
Physics is:
A branch of science that deals with matter, energy, motion, and force
A stationary object that can be compared to when there is a change in position
A force that opposes motion; can cause an object to slow or stop
Tendency of an object to resist change in motion. A property of matter
Force of attraction between two objects due to their masses
Inertia is:
A branch of science that deals with matter, energy, motion, and force
A stationary object that can be compared to when there is a change in position
A force that opposes motion; can cause an object to slow or stop
Tendency of an object to resist change in motion. A property of matter
Force of attraction between two objects due to their masses
What is a PUSH or PULL of an object?
Motion
Force
Friction
Gravity
What pulls a ball back to earth?
Gas
Gravity
Friction
Molecules
_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.
pressure
magnetism
friction
What surface would probably offer the least friction if you were to slide a box across it?
The rougher the surface, the faster an object will travel over the surface.
True
False
1. It is easier to ride a bicycle down a hill than to ride up a hill because _______ helps the bicycle move down the hill.
gravity
friction
rotation
the tendency of an object to resist a change in its motion
acceleration
inertia
mass
When are you undergoing an acceleration in a car?
speed up
slow down
make turns
All of the above
If an object has a large mass, it needs a stronger force to make it accelerate. Which law of motion does this describe?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Identify the law of motion which states that forces always act in equal and opposite pairs.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Which law of motion does this picture illustrate?
1st Law
2nd Law
3rd Law
When a skydiver is falling through the air, what is the name of the force acting upwards
Gravity
Air resistance
upward force
the moon
which of these is an effect of force?(tick mark the correct answers)
force can start a motion
force can stop a motion
force can change the direction of motion
force can change the shape of an object
force can change the speed a moving object
moving or tending to move toward a center...
centripetal force
centrifugal force
Tangent
Curvature
The measure of the upward force applied by a fluid on an object is called:
density
weight
volume
buoyancy
A submarine will not change its motion if:
Gravity is greater than buoyancy.
Buoyancy is greater than gravity.
Buoyancy is equal to gravity.