WorksheetsNewton's Laws and Forces Comprehension
Total questions: 35
Worksheet time: 36mins
What is Newton's First Law of Motion, and what does inertia mean?
An object will change its motion unless a force acts on it; Inertia is the tendency to change motion.
An object will remain at rest or in uniform motion unless acted upon by an external force; Inertia is the tendency to resist changes in motion.
An object will accelerate if a force is applied; Inertia is the tendency to accelerate.
An object will stop moving if no force acts on it; Inertia is the tendency to stop.
What is the difference between balanced and unbalanced forces?
Balanced forces cause acceleration; Unbalanced forces cause no change in motion.
Balanced forces are unequal; Unbalanced forces are equal.
Balanced forces cancel each other out and cause no change in motion; Unbalanced forces create a net force that causes acceleration.
Balanced forces always act in the same direction; Unbalanced forces act in opposite directions.
What happens to kinetic energy in inelastic collisions?
It is completely conserved.
It is lost as heat and sound.
It increases.
It remains unchanged.
What is the definition of acceleration?
The speed of an object.
How fast an object's speed changes, divided by time.
The distance an object travels.
The force applied to an object.
Which type of force involves two or more forces that are equal in strength but opposite in direction, causing no change in motion?
Contact Force
Gravitational Force
Balanced Force
Inertia
What is the process of moving energy from one object, place, or system to another?
Energy Transformation
Energy Transfer
Kinetic Energy
Gravitational Potential
What is a push or a pull that, if nothing stops it, will change how an object moves?
Friction
Force
Inertia
Gravitational Potential
What is a contact force that resists sliding motion between objects that are touching?
Gravitational Force
Inertia
Friction
Balanced Force
What is the amount of work needed to move an object against gravity to a specific position from a starting position?
Kinetic Energy
Gravitational Potential
Energy Transfer
Friction
What is an object's natural tendency to resist changes in how it's moving?
Energy
Inertia
Force
Friction
What is the unit for measuring force, equal to the force needed to make a 1-kilogram mass accelerate by 1 meter per second squared?
Joule (J)
Newton (N)
Watt (W)
Pascal (Pa)
Which term describes the total of all individual forces acting on an object?
Net Force
Potential Energy
Reaction Force
Unbalanced Forces
What is the term for a force that acts on an object from a distance without physical touch?
Contact Force
Reaction Force
Non-contact Force
Balanced Force
What is the formula for force according to Newton's Second Law?
F = ma
F = mg
F = m/v
F = m + a
According to Newton's Third Law, what happens for every action force?
There is an equal and opposite reaction force.
The object remains at rest.
The object accelerates.
The force is doubled.
Which of the following represents the formula for acceleration?
a = (v_f - v_i)/t
a = (v_i - v_f)/t
a = v_f × v_i × t
a = v_f + v_i + t
How is kinetic energy calculated?
KE = ½mv²
KE = mv²
KE = ½mv
KE = m²v
Which formula represents work done?
W = Fd
W = F/d
W = d/F
W = F + d
What is the formula for momentum?
p = mv
p = m/v
p = v/m
p = m + v
What does the conservation of momentum state?
Total momentum before collision = Total momentum after collision
Total momentum before collision > Total momentum after collision
Total momentum before collision < Total momentum after collision
Total momentum before collision ≠ Total momentum after collision
A book is sitting on a table. Which statement is most accurate?
No forces are acting on the book
Only gravity is acting on the book
The table pushes up on the book with the same force that gravity pulls down
The book is too heavy for the table to support it
You push a shopping cart across a smooth floor. When you stop pushing, the cart:
Stops immediately
Continues moving at the same speed forever
Gradually slows down and stops
Speeds up for a moment, then stops
A passenger in a car feels pushed backward when the car suddenly speeds up. This happens because:
The car seat pushes the passenger backward
The passenger's body wants to stay at rest due to inertia
There's a backward force acting on the passenger
The passenger is heavier when the car accelerates
Which object has the most inertia?
A ping pong ball moving at 50 mph
A bowling ball sitting still
A baseball moving at 90 mph
A tennis ball moving at 100 mph
If you want to make a ball accelerate twice as fast, you need to:
Use half the force
Use the same force
Use twice the force
Use four times the force
A 2 kg object and a 4 kg object are dropped from the same height in a vacuum. The acceleration due to gravity is the same for both because:
Heavier objects fall faster
Lighter objects fall faster
Gravity pulls harder on heavier objects, but they also have more inertia to overcome
There's no gravity in a vacuum
When you walk forward, you push backward on the ground. The ground pushes forward on you. These forces are:
The same force acting twice
Equal in strength but opposite in direction
Unequal - your push is stronger
Unequal - the ground's push is stronger
A small car crashes into a large truck. During the collision:
The car exerts more force on the truck
The truck exerts more force on the car
They exert equal forces on each other
No forces act during the collision
A ball rolls across the floor and gradually stops. This happens because:
The ball runs out of force
The ball's natural tendency is to stop
Friction opposes the ball's motion
Gravity pulls the ball downward
A rocket in space can move forward by:
Pushing against space itself
Using its fins to steer through space air
Expelling gas backward to propel forward
Gravitational pull from nearby planets
Click the dot that has the greatest gravitational potential energy.
Match Newton's laws with the description that best fits it.
An object at rest and an object in motion will both maintain a constant state of motion - unless acted upon by an unbalanced force.
For every applied Force, there is an equal and opposite reactive Force.
Newton's 3rd Law
The acceleration of a mass is proportional to the Net Force acting on it
Newton's 2nd Law
A Roland Grise volleyball player served a volleyball with a Mass of 0.22 kilograms with a Force of 55 Newtons. How fast in meters per second squared did the volleyball player accelerate the volleyball?
If an object is speeding up, slowing down, or changing directions, the forces acting on it are (a) .
If an object is at rest or is moving at a constant velocity, the forces acting on it are (b) .
UNBALANCED
BALANCED
Match the following
Describing the motion of an object is to describe how far it has moved.
Distance
The distance and direction of an objects change in position from the starting point.
Displacement
The speed of an object and its direction.
Velocity
The rate of change in velocity.
Acceleration
