Performance final

1Dimensional Motion

Projectile Motion

Newton’s Laws,

force

Momentum, Work, Energy, and Power.

100

If an object has a constant velocity, what can be said about its acceleration?

A.The acceleration is zero

B.The acceleration is constant

C.The acceleration is increasing

D.The acceleration is decreasing

A.The acceleration is zero

100

Which of the following measurements is NOT a Scalar?

A.Time

B.Speed

C.Distance

D.Displacement

100

Which arrow representing Normal force and which one shows weight?

" style="display: block; overflow-wrap: break-word; overflow: auto hidden; text-align: start;">

Which arrow representing Normal force and which one shows weight?

A.)mg sin@, N

B.)N, mg

C.)mg cos@, mg sin@

D.)mg, N

B.)N, mg

100

A.)A>B>C>D

B.)0A=B>C<D

C.)D<C<B<A

D.)D>C>B>A

A.)A>B>C>D

100

A 0.2 kg object is moving with a velocity of 5 m/s. What is the momentum of the object?

A) 1 N

B) 2 N

C) 5 N

D)10 ns

B02n

200

Which of the following represents the relationship between velocity and time for an object moving with constant acceleration?

A.A linear graph

B.A parabolic graph

C.An exponential graph

D.A sinusoidal graph

A.A linear graph

200

A football is kicked across the field. Which of the following is true

Question 33 options:

A.The acceleration is 0m/s/s.

B.The acceleration is positive on the way up.

C.The acceleration of the ball decreases as the ball moves upward

D.The vertical velocity of the ball is 0 m/s when the ball is at the highest point

C.the velocity of the ball increase as the ball moves upward

200

A student is drawing a free body diagram for the following scenario: "A penguin accelerates by sliding down an icy hill on its belly."

What else should her drawing include

A. It should include an arrow pointing down along the ramp, because the force of inertia pulls the penguin down the ramp

B.It should include an arrow pointing straight up, because the normal force of the hill is the reaction force to gravity.

C. It should include an arrow pointing down along the ramp, because the force of friction pulls the penguin down the ramp.

D. should include an arrow pointing upward, perpendicular to the ramp, because the normal force represents the support force of the surface.

B. It should include an arrow pointing straight up, because the normal force of the hill is the reaction force to gravity.

200

Kids were playing with balls which are of equal mass. They kicked them with different forces. Which one accelerated more?

Red ball – 10N

Blue ball – 3N

Yellow ball - 5N

Question 17 options:

A.)None of the them

B.)Yellow ball since force there is no relation between force and mass

C.)Blue ball since force and acceleration are inversely related.

D.)Red ball since force and acceleration are direc

D.)Red ball since force and acceleration are directly related

200

An object has a mass of 100 kg moving at 5 m/s. What is the linear momentum of the object?

A.500 kg m/s

B.20 kg m/s

C.0.05 kg m/s

D.100 kg m/s

A.500 kg m/s

300

What is the average acceleration of an object that changes its velocity from 10 m/s to 30 m/s in 5 seconds?

A.2 m/s^2

B.4 m/s^2

C.6 m/s^2

D.8 m/s^2

B.4 m/s^2

300

A plane traveling at a constant horizontal velocity drops a package. If the package experiences no air resistance, describe the path of the package in relation to the position of the plane.

A.The package will always be directly below the plane, until the moment it strikes the ground.

B.The package will gradually fall behind the horizontal position of the plane as it falls through the air.

C.The package will gradually surpass the horizontal position of the plane as it falls through the air.

D.It will depend on the mass of the package.

A.The package will always be directly below the plane, until the moment it strikes the ground.

300

While skydiving, Dee opens her parachute and her 53.4-kg body immediately accelerates upward for an instant at 8.66 m/s/s. Determine the upward force experienced by Dee during this instant.

A-153N

B-986N

C-500N

D-489N

B -986n

300

50N

300N

337N

750N

C.337n

300

A golf club has 10 kg m/s of momentum when it hits a golf ball that is at rest. After the collision, the golf club has a momentum of 1 kg m/s and the golf ball has a momentum of 9 kg m/s. Which of the following comparisons is TRUE about the change in momentum of the two objects?

Question 58 options:

A.the change in momentum is equal and opposite for the two objects

B.the change is momentum was unequal for the two objects

C.the change in momentum is the same for the two objects

A.the change in momentum is equal and opposite for the two objects

400

a police officer living on a planet with no air resistance drops a pair of handcuffs and a handkercheif from the same height at the same time which one will reach the ground first.

A.the handcuffs

b.the handkerchief

C.they will both hit the ground at the same time

D.the answer depends on how far above the ground they were when he dropped them.

c.they will both hit the ground at the same time

400

The velocity in the vertical direction begins to as object rises

A.decrease

B.increase

c. stay the same

D.none of the above

A.decrese

400

which of these undergo a change when force is applied

A.change in direction

B.change in momentum

C.change in kinetic energy

D.all of the above

D all of the above

400

what are the quantities that force can change

A.direction

B.speed

C.direction

D.all the above

400

A car decelerates from a speed of 20 m/s to 10m/ in the 25 seconds the car has a mass of 1200kg calculate the force felt by the car

A-90n

B.480n

C.300m

D.500n

B.480n

500

how long does it take you to travel 200 meters if constantly accelerate from 2.0 m/s to 20 m/s

A.-18.2

B.-20.0s

C.-17.5

D.-18.0

B18.2

500

Example of the projectile is

A-walking

B.fish in the pound

C.a baseball thrown

D.moth flying

C.a baseball thrown

500

inertia is defined as
A- property of mass to change the motion

B.property of mass to change in its state of rest or motion

C.property of mass to remain at motion

D. Property of matter by which it remains at rest or unchanging motion unless acted on by some external force

500

A 100 kg block of wood is traveling a constant velocity on lice.what is it's normal force

A.0N

B. 10n

C.100

D.1000n

500

Andrew is driving his 200 kg car at 50 km/h he changes his attention from the road to a text a friend and drives into the back end of the car in front of him moving them both at a speed of 40 km/h.If the second car has mass of 1000kg how fast it was travelling prior to the collision

A.0km/h

B.10 km/h

C.20 km/h

D.30 km/h

C.20 km/h