An astronaut is planning a trip to a newly-discovered planet. According to the Law of Universal Gravitation, the astronaut's weight on the new planet will be greater than his weight on Earth if:

the new planet has more gravity than Earth.

the new planet has less gravity than Earth.

the new planet has the same gravity as Earth.

the gravity of the planet doesn't matter. Weight is the same everywhere in the universe.

A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be

not enough information to determine

Which statement below is FALSE?

Weight is a constant no matter where you are located.

Weight depends on the force of gravity.

Mass is the amount of matter in an object.

Mass is a constant no matter where you are located.

Consider a watermelon that starts from rest and is dropped straight down from a tall building. Air resistance can be ignored. Which statement about the watermelon’s motion is FALSE?

The watermelon falls with a constant velocity.

The watermelon has a positive acceleration.

After 2 seconds, its velocity is 19.6 m/s.

The watermelon’s acceleration due to gravity is 9.8 m/s².

Which of the following best describes how a swimmer moves through the water?

The swimmer pushes backwards on the water and the water pushes with an equal but opposite force back on the swimmer.

The swimmer pushes off the side of the pool and his inertia keeps him moving through the water.

The swimmer uses friction to push himself through the water.

Air resistance limits the swimmer’s speed.

A student drops a feather and rock at the same time from Mrs. Taylor’s window. If air resistance wasn’t a factor, what should she observe?

The rock and feather fall at the same rate.

The rock falls slower than the feather.

The rock falls faster than the feather.

The rock and feather remain suspended and do not fall.

33. Why does someone not wearing a seatbelt in a car fly forward when the car stops suddenly? Make sure to include which law explains this. (2 pts)

Because of inertia, explained by Newton's First Law of Motion.

Because of gravity, explained by Newton's Second Law of Motion.

Because of friction, explained by Newton's Third Law of Motion.

Because of acceleration, explained by Einstein's Theory of Relativity.

34. Why does it take more effort to make a bowling ball accelerate 25 m/s² than to make a tennis ball accelerate 25 m/s²? Make sure to include which law explains this. (2 pts)

A bowling ball has more mass than a tennis ball, and according to Newton's Second Law, Force = mass x acceleration.

A tennis ball has more mass than a bowling ball, and according to Newton's Second Law, Force = mass x acceleration.

Both balls have the same mass, but a bowling ball requires more force due to air resistance.

A bowling ball requires less force to accelerate than a tennis ball due to its shape.

How does a trampoline work? Make sure to include which law explains this.

A trampoline works by storing energy when you jump on it and releasing it to propel you upwards, explained by Newton's Third Law of Motion.

A trampoline works by converting potential energy into kinetic energy, explained by the Law of Conservation of Energy.

A trampoline works by using magnetic forces to propel you upwards, explained by Faraday's Law.

A trampoline works by using air pressure differences, explained by Bernoulli's Principle.

Rank the following objects from LEAST momentum to MOST momentum. (3 pts) - falling feather - parked car - fast car

parked car, falling feather, fast car

falling feather, parked car, fast car

fast car, parked car, falling feather

parked car, fast car, falling feather

What speed will the skydiver eventually reach? What is this speed called? (2 pts)

Terminal velocity, the constant speed reached when the force of gravity is balanced by air resistance.

Maximum velocity, the highest speed reached during free fall.

Average speed, the mean speed over the entire fall.

Initial speed, the speed at the moment of jumping.

What is the Maximum terminal velocity a human can reach?

gravity is an accelerating force, therefore the human will keep speeding up as they fall to Earth

A man and his bike are 95 kg. His instantaneous speed at one point is 14m/s. The next time his speed is checked he is going 28m/s. If the second speed was taken 7 seconds later, what force must the man have given his bike to change the speed? What was the bicyclist’s final momentum?

Force: 380 N, Momentum: 2660 kg·m/s

Force: 190 N, Momentum: 2660 kg·m/s

Force: 190 N, Momentum: 1330 kg·m/s

Force: 380 N, Momentum: 1330 kg·m/s

The factors that affect the amount of friction include:

Surface roughness, normal force, and surface area

Force Test Honors

Authored by Mathew Luttrell

Science

11th Grade

NGSS covered

Used 2+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force so that the rope is not moving. This is an example of

unbalanced forces

balanced forces

acceleration

displacement

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is the most likely cause of this?

The hose material is very elastic.

Since the hose is at rest, it tends to stay at rest.

The force exerted on the water equals the mass of the water times its acceleration.

The escaping water exerts an equal and opposite force on the hose.

Tags

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An object in motion with no unbalanced forces acting on it will

A. eventually slow down and come to a complete stop.

B. slow down, but never quite stop.

C. continue to move in its path at a constant speed.

D. accelerate.

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The upward force on an object falling through the air is ____.

air resistance

momentum

inertia

gravity

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The relationship among mass, force, and acceleration is explained by ____.

Law of Conservation of Momentum

Newton's 2nd Law of Motion

Newton's 1st Law of Motion

Newton's 3rd Law of Motion

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For any object, the greater the force that's applied to it, the greater its ____ will be.

acceleration

inertia

gravity

size

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The size of the gravitational force between two objects depends on their ___

frictional forces

masses and the distance between them

inertia

speed and direction

Tags

NGSS.MS-PS2-4

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Force Test Honors

A group of students is playing tug-of-war. The students on both sides of the rope are pulling with equal force so that the rope is not moving. This is an example of

A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire. What is the most likely cause of this?

An object in motion with no unbalanced forces acting on it will

The upward force on an object falling through the air is ____.

The relationship among mass, force, and acceleration is explained by ____.

For any object, the greater the force that's applied to it, the greater its ____ will be.

The size of the gravitational force between two objects depends on their ___

An astronaut is planning a trip to a newly-discovered planet. According to the Law of Universal Gravitation, the astronaut's weight on the new planet will be greater than his weight on Earth if:

A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be

A 500 N force is applied to a 25 m/s² object. The mass of the object is .

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