Force
What is the unit to MEASURE force?
Newton
What is the formula for force?
F=M*A
The acceleration of objects falling on Earth due to gravity is:
a. 9.8 m/s b. 9.8 m/s2 c. 9.8 g/mL
9.8 m/s2
What is the SI unit of acceleration
m/s2
state the Newton's First law of motion?
An object at rest stays at rest, an object in motion stays in motion. Law of Inertia
What do you call the push or a pull on an object?
force
A 20 kg bike accelerates at 10 m/s2. what was the force?
200 Newtons
What is the value of G, the universal gravitational constant?
6.67 x 10 -11
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
16 m/s2
State the Newton's second law of motion.
F = ma or Law of acceleration,
Forces that have a net force of zero Newtons is it: Balanced force or Unbalanced force
Balanced force
What is Newton's First Law known as? The Law of
Inertia
Where would you have to travel to reduce your weight but not lose any mass?
The moon
A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
-0.5 m/s2
State the Newton's third law of motion
Law of interaction, for every action, there is an equal and opposite reaction
What will cause an object to move? a. Applied forces, b. Balanced forces, c. Unbalanced forces
Unbalanced forces
Newton's third law states that any action will have a(n) _______ and ______ reaction
Equal and opposite
This FORCE pulls things. It PULLS things into orbit around the sun.
gravity
A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
9 m/s2
What Unit do we Measure Force in?
Newtons
Forces can change the.....
a. slow down or speed up objects only ,b. speed, direction or shape of an object , c. movement of objects but only if they were already in motion
speed, direction or shape of an object
According to __________, the acceleration of an object is equal to the net force acting on the object divided by the object's mass.
Newton's Second Law
The law of universal gravitation is credited to whom?
Newton
A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?
-1400 m/s2
Your friend pushes you for making fun of him/her. What is the reaction force?
You pushing back on your friend