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WorksheetsUnit 5 Physics
Total questions: 10
Worksheet time: 5mins
An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force. Which of Newton's Laws of Motion does this statement describe?
Newton's First Law
Newton's Second Law
Newton's Third Law
None of the above
What does it mean for an object to be in a state of equilibrium?
The object has a net force acting on it, causing it to accelerate.
The object is at rest, and no forces are acting on it.
The object has a net force of zero, so its motion is constant (either at rest or moving at a constant velocity).
The object is only at rest, not moving at all.
Which of the following is a real-world example of Newton's First Law (inertia)?
A car accelerating as the driver presses the gas pedal.
The recoil of a gun after it is fired.
A person lurching forward when a car stops suddenly.
A rocket launching into space.
If you apply a constant force to an object, but you double the object's mass, how will its acceleration change?
The acceleration will double.
The acceleration will be cut in half.
The acceleration will stay the same.
The acceleration will be four times greater.
If you push a cart with a larger force, what will happen to its acceleration (assuming its mass stays the same)?
The acceleration will decrease.
The acceleration will increase.
The acceleration will stay the same.
The acceleration will be zero.
The relationship between force, mass, and acceleration is best described by which of Newton's laws?
Newton's First Law
Newton's Third Law
Newton's Second Law
All of the above
When a rocket expels gases downward, the gases exert an equal and opposite force on the rocket, pushing it upward. This is an example of:
Newton's Third Law
Newton's First Law
Newton's Second Law
The Law of Universal Gravitation
Which of the following is an example of an action-reaction force pair?
A person pushing a door and the door swinging open.
The force of a bat on a ball and the force of the bat on the air.
The force of a foot on a soccer ball and the force of the ball on the foot.
The force of gravity on a ball and the ball's motion toward the ground.
A seatbelt is an essential safety device because it helps to reduce the force on a passenger during a collision. Which of Newton's laws best explains the function of a seatbelt?
Newton's First Law, because the seatbelt keeps the person from moving.
Newton's Second Law, because it increases the time it takes for the person to stop, reducing the force on them.
Newton's Third Law, because the seatbelt and the person exert equal and opposite forces on each other.
All of the above, because they all contribute to the final outcome.
A student pushes a tennis ball and a bowling ball with the same force. The tennis ball moves away with a much greater acceleration. This is because:
The student applied a greater force to the tennis ball.
The tennis ball has less mass, so it has less inertia.
The bowling ball has a greater mass and therefore a greater acceleration.
The forces are equal and opposite, and therefore the accelerations must also be equal.
