acceleration , momentum
TRUE OR FALSE ,acceleration only takes place when things speed up?
FALSE
This is a push or pull in any direction
force
what is the formula of newton 2 law of motion
F = mass . acceleration
the force of gravity on an object is called ..
weight
force attract all object toward each other
gravity
acceleration is defined as the change in
velocity
friction is a force that acts...
opposite to direction of motion
what is newton 1 law ?
an object at rest stays at rest an object in motion stays at motion
what is the unit of mass?
kilogram (kg)
Hamad is jumping up in the air. What happens at the highest point of his jump?
the gravity Gravity starts to pull him back down.
determine the momentum of 100k kg car moving northward at 20 m/s
20000 kg m/s
what two factors do you use to describe a force?
strength and direction
which laws says an object at rest stays at rest and an object in motion stays at motion
first
True or false? It is easier to kick a beach ball then it is a basketball
true
As mass increases, what happens to gravitational force?
increases
A 2kg cart moving at 14 m/s what is the momentum?
28kg m/s
What is the force that opposes the motion of objects that touch as they move past each other?
Friction
Newtons 1 law is the law of
inertia
true or false? it s harder to pull a puppy than a dog
false
The force of gravity acting on an object is the objects..
weight
A runner has a momentum of 500 kg and he is travling at a velocity of 10 m/s what is the mass?
50 kg
Mariam rolls a ball across the floor. What type of force is acting on the ball?
friction
Ali's car, which weighs 1,000 kg, is out of gas. Ali is trying to push the car to a gas station, and he makes the car go 0.05 m/s/s. Using Newton's Second Law, you can compute how much force Ali is applying to the car
Tip: (F= M x A)
50 N
which is easier pushing a box with a mass of 20 kg or a box with a mass of 5 kg and why?
5kg, because it has less mass which makes it easier to push
Gravity attracts all objects towards one another
true