Worksheetshahaha
Total questions: 23
Worksheet time: 28mins
Which of the following is a unit of force?
Joule
Newton
Watt
Pascal
What does Newton's First Law of Motion state?
Force equals mass times acceleration.
Every action has an equal and opposite reaction.
An object in motion stays in motion unless acted upon by an external force.
The acceleration of an object depends on its mass and the applied force.
What is the formula for calculating acceleration?
Distance / Time
Force / Mass
Mass x Velocity
Velocity x Time
Which law of motion explains why you feel pushed back into your seat when a car accelerates quickly?
Newton's First Law
Newton's Second Law
Newton's Third Law
Law of Conservation of Energy
What is the term for the force that opposes the motion of an object through air?
Gravity
Friction
Air resistance
Tension
Which of the following represents Newton's Second Law of Motion?
F = m/a
F = m x a
F = m + a
F = a/m
Which factor does NOT affect the force of friction between two surfaces?
The roughness of the surfaces
The area of contact between the surfaces
The mass of the object
The type of material of the surfaces
What is inertia?
The resistance of an object to a change in its state of motion
The force that accelerates an object
The speed of an object in a particular direction
The amount of matter in an object
If an object is moving at a constant velocity, what can be said about the net force acting on it?
It is zero
It is equal to the weight of the object
It is equal to the mass times acceleration
It is increasing
What type of force causes an object to move in a circular path?
Centripetal force
Gravitational force
Frictional force
Magnetic force
Which of the following is an example of a balanced force?
A car accelerating on a highway
A rock falling from a cliff
A book resting on a table
A person pushing a broken-down car
What is the force that pulls objects toward the center of the Earth?
Electromagnetic force
Gravitational force
Nuclear force
Centripetal force
If an object is thrown upwards, what will happen to its velocity at the highest point of its path?
It will be maximum
It will be minimum
It will be zero
It will be equal to the initial velocity
What happens to the kinetic energy of an object when its velocity is doubled?
It remains the same
It is doubled
It is quadrupled
It is halved
Which of these forces is a contact force?
Gravity
Magnetism
Friction
Electrostatic force
NEWTONS LAW OF MOTION
WHAT IS THE FIRST NEWTONS LAW OF MOTION? (STATE)
WHAT IS SECOND NEWTONS LAW OF MOTION? (STATE)
WHAT IS THE THIRD NEWTONS LAW OF MOTION?
"An object at rest will remain at rest, and an object in motion will continue moving at a constant velocity in a straight line unless acted upon by an ________ _____."
(a)
"The (a) of an object is directly proportional to the net force acting on it and inversely proportional to its mass." (F=ma)
"For every action, there is an equal and (a) reaction."
Acceleration is the rate at which an object's velocity changes over time. It indicates how quickly an object speeds up, slows down, or changes (a) .
Unbalanced forces occur when the total (net) force acting on an object is not equal to zero. This happens when forces acting in opposite directions on an object are not equal in (a) , causing a change in the object's state of motion.
A car accelerates uniformly from rest to a speed of 25 m/s in 10 seconds.
Determine:
a. The car's acceleration.
b. The distance covered by the car during this time.
a= 2.6 m/s2
d= 128 m
a= 1.8 m/s2
d= 124.2 m
a= 2.5m/s2
d= 125 m
a= 2.24 m/s2
d= 126.45 m
Two ice skaters, Skater A and Skater B, are on a frictionless ice surface. Skater A has a mass of 50 kg and is moving to the right at 3 m/s. Skater B has a mass of 70 kg and is moving to the left at 2 m/s. They collide and after the collision, they stick together.
Determine:
a. The final velocity of the combined skaters after the collision.
b. Whether the collision is elastic or inelastic.
Final velocity of the combined skaters: 0.083 m/s to the right.
Inelastic
Final velocity of the combined skaters: 0.093 m/s to the left.
Inelastic
Final velocity of the combined skaters: 0.073 m/s to the left
elastic
Final velocity of the combined skaters: 0.063 m/s to the left.
elastic
