Free Printable Honors Free Fall and Projectiles

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Honors Free Fall and Projectiles

Total questions: 42

Worksheet time: 1hrs 6mins

Name

Class

Date

As an object travels through the air, its vertical velocity

changes continuously

remains the same

What is the horizontal acceleration of a projectile?(neglect air resistance)

0 m/s²

9.8 m/s²

The more mass an object has, the faster it will fall.(neglect air resistance)

True

False

What is the vertical acceleration of a projectile?(neglect air resistance)

0 m/s²

9.8 m/s²

If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?(neglect air resistance)

6 m/s

12 m/s

18 m/s

24 m/s

If you drop a banana, how fast is it going after 2 seconds?(neglect air resistance)

4.9m/s

9.8m/s

19.6m/s

29.4m/s

If you throw a baseball straight up, what is its velocity at the highest point?

9.8 m/s²

9.8 m/s

0 m/s²

0 m/s

If you throw a baseball straight up, what is its acceleration at the highest point?

-9.8 m/s²

-9.8 m/s

0 m/s²

0 m/s

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?(neglect air resistance)

Shot Bullet

Dropped Bullet

Hit at Same Time

10.

If car A is horizontally driving off a cliff at the same moment car B is pushed from the same cliff, which has a larger vertical speed when they hit the ground?(neglect air resistance)

Car A

Car B

Same for Both

heavier car

11.

A vector is a quantity that had

magnitude and time

time and direction

magnitude and direction

direction and rhythm

12.

Which of the following would NOT be considered a projectile?

a cannonball thrown straight up

a cannon ball rolling down a slope

a cannonball rolling off a table

a cannonball thrown in the air

13.

The distance between two balls when they hit the ground is independent from_____(neglect air resistance)

the right ball's horizontal speed

time

the gravity

none of these

14.

In the absence of air friction, the vertical component of a projectile's velocity doesn't change as the projectile moves.

True

False

Sometimes true

Sometimes false

15.

In the absence of air friction, the horizontal component of a projectile's velocity doesn't change as the projectile moves.

True

False

Sometimes true

Sometimes false

16.

Suppose an object is in free fall.(neglect air resistance) Each second the object falls _________

the same distance as in the second before.

a larger distance than in the second before.

with the same instantaneous speed.

with the same average speed.

17.

When a basketball player jumps to make a shot, once the feet are off the floor, the jumper's acceleration

varies with body orientation.

depends on launch speed.

is usually greater for taller players (but not always).

is g(9.8m/s²); no more, no less.

18.

The impact (hit the ground) velocity of an object that was fired horizontally is ____________ the initial velocity.

the same as

greater than

less than

zero - duh it's hitting the ground

19.

A small cart is rolling at constant velocity on a flat track. It fires a ball straight up into the air as it moves. After it is fired, what happens to the ball?

it depends on how fast the cart is moving

it falls behind the cart

it falls in front of the cart

it falls right back into the cart

it remains at rest

20.

You drop a package from a plane flying at constant speed in a straight line. Without air resistance, the package will:

quickly lag behind the plane while falling

remain vertically under the plane while falling

move ahead of the plane while falling

not fall at all

21.

From the same height (and at the same time), one ball is dropped and another ball is fired horizontally. Which one will hit the ground first?

the “dropped” ball

the “fired” ball

they both hit at the same time

it depends on how hard the ball was fired

it depends on the initial height

22.

The spring-loaded gun can launch projectiles at different angles with the same launch speed. At what angle should the projectile be launched in order to travel the greatest distance before landing?

23.

You are trying to hit a friend with a water balloon. He is sitting in the window of his dorm room directly across the street. You aim straight at him and shoot. Just when you shoot, he falls out of the window! Does the water balloon hit him?

yes, it hits

maybe – it depends on the speed of the shot

no, it misses

the shot is impossible

not really sure

24.

You’re on the street, trying to hit a friend with a water balloon. He sits in his dorm room window above your position. You aim straight at him and shoot. Just when you shoot, he falls out of the window! Does the water balloon hit him??

yes, it hits

maybe – it depends on the speed of the shot

the shot is impossible

no, it misses

not really sure

25.

A projectile is launched horizontally from a platform with a height of 15 meters at a velocity of 20 m/s. How far from the platform will the projectile land? In order to answer this question, you first need to find the value for which of the following variables?

d_x

d_y

26.

Four turkeys push a lawn mower traveling at 20 m/s horizontally from a cliff with a height of 15 meters. How far from the cliff will the lawn mower land if it hits the ground 1.7 seconds after it is launched?
Identify the variable you are being asked to find.

27.

A horse kicks a snowball with an initial velocity of 20 m/s at an angle of 60 degrees to the horizontal. What would the trigonometric function would be used to find the horizontal component of the snowball's velocity?

sinΘ x 20 m/s

cos Θ x 20 m/s

tan Θ x 20 m/s

none of these

28.

A horse kicks a snowball with an initial velocity of 20 m/s at an angle of 60 degrees to the horizontal. Which trigonometric function would be used to find the vertical component of the snowball's velocity,

sinΘ x 20 m/s

cosΘ x 20 m/s

tanΘ x 20 m/s

none of these

29.

A horse kicks a snowball with an initial velocity of 20 m/s at an angle of 60 degrees to the horizontal. Find the horizontal and vertical components of the snowball's velocity.

V x =17.3 m/s, Vy = 10 m/s

V x = 10 m/s, V y =17.3 m/s

V x = 56. 4 m/s, V y = 20. 5 m/s

V y = 20. 5 m/s, V x = 56.4 m/s

30.

A horse kicks a snowball with an initial velocity of 20 m/s at an angle of 60 degrees to the horizontal. If g = -9.8 m/s/s and the snowball is in the air for 1.5 seconds, how high will it go before it begins to fall back down?

14.9 m

4.7 m

10.2 m

3.5 m

31.

Do free falling objects move at constant velocity or do they accelerate?

Falling objects accelerate at -9.8 m/s²

Falling object move at constant velocity

Falling objects accelerate at 100 m/s²

It depends on the mass: heavy objects accelerate, light objects do not

32.

For a Case 1 Free Fall (Dropped), the initial velocity is ___.

zero

constant

increasing

decreasing

33.

An object in free fall has a ____ acceleration.

constant

increasing

decreasing

zero

34.

For a Case 2 Free Fall ("Thrown Down"), the initial velocity is ___.

zero

greater than zero and is directed downward

greater than zero and is directed upward

constant

35.

For a Case 3 Free Fall (Thrown Up), if the launching elevation is the same as the landing elevation, the total time that the free fall is airborne must be ___.

equal to the time going up

equal to the time going down

the sum of time going up and half of the time going down

twice the time going up

36.

For a Case 3 Free Fall (Thrown Up), the acceleration of the object at the peak height must be ___.

zero

directed upward

constant

increasing

37.

Two similar Coins are observed. Coin A was dropped from the same height as Coin B was thrown vertically downward. The vertical displacements of the coins are the same. The landing velocity of Coin A must be ___ the landing velocity of Coin B.

equal to

greater than

less than

in the opposite direction as

38.

Do free falling objects move at constant velocity or do they accelerate?

Falling objects accelerate at -9.8 m/s²

Falling object move at constant velocity

Falling objects accelerate at 100 m/s²

It depends on the mass: heavy objects accelerate, light objects do not

39.

What values are always known for a free falling object that was dropped?

v_i = 0 m/s

a = -9.8 m/s²

v_i = -9.8 m/s

a = -9.8 m/s²

v_i = -9.8 m/s

a = 0 m/s²

d = -9.8 m

v_i = 0 m/s

40.

What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s²)?.

10, 20, 30, 40, 50 m/s

5, 10, 15, 20, 25 m/s

5, 20, 45, 80,125 m

10,10,10,10,10 m/s

41.

What is the distance a ball falls after 1,2,3,4,5 seconds (assume g is rounded to 10 m/s²)?

10, 20, 30, 40, 50 m (meters)

5, 20, 45, 80,125 m (meters)

5, 10,15, 20, 25 m (meters)

10, 25, 60, 90,120 m (meters)

42.

What is the acceleration of a ball that is dropped off the side of a cliff after 1,2,3,4,5 seconds? (assume g is rounded to 10 m/s²)

5,10,15, 20, 25 m/s²

10, 20, 30, 40, 50 m/s²

5, 20, 45, 80, 125 m/s²

10,10,10,10,10 m/s²

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Honors Free Fall and Projectiles

Total questions: 42

Worksheet time: 1hrs 6mins

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