Quiz about Semester 2 Final Exam Physical Science May 2019

Question 1

What is a force?

Accepted Answer

a push or pull

Answer

speed or acceleration

Answer

potential or kinetic energy

Answer

balanced or unbalanced force

Question 2

When objects remain in the same place, it is called...

Accepted Answer

balanced force

Answer

gravity

Answer

friction

Answer

unbalanced force

Question 3

What is the force that causes everything to be pulled down to the Earth?

Accepted Answer

gravity

Answer

friction

Answer

balanced

Answer

unbalanced

Question 4

Force is measured in....

Accepted Answer

Newtons

Answer

Galileos

Answer

Di Vincis

Answer

Einsteins

Question 5

An unbalanced force is when objects move in one direction because the force is greater from that direction.

Accepted Answer

true

Answer

false

Question 6

Inertia is....

Accepted Answer

an object in motion tends to stay in motion unless acted on by an opposite force

Answer

for every action, there is an equal and opposite reaction

Answer

larger objects take more force to move

Answer

a push that acts in the opposite direction and it slows down.

Question 7

What is a force that works AGAINST MOTION?

Accepted Answer

Friction

Answer

Force

Answer

Motion

Answer

Gravity

Question 8

If these boys are pulling with the same amount of force.  What will happen?

Accepted Answer

They will not move at all.

Answer

The boy in blue will win.

Answer

The boy in red will win.

Answer

Both will fall down.

Question 9

Which force produces a change in motion?

Accepted Answer

unbalanced force

Answer

balanced force

Answer

gravitational force

Answer

frictional force

Question 10

An automobile you are riding in suddenly stops, why does your body continue to go forward?

Accepted Answer

An object in motion stays in motion.

Answer

Gravity pulls your body towards the earth.

Answer

Friction makes your body slow down.

Question 11

If a magician pulls a table cloth from under a table of dishes, what should happen based on Newton's 1st law?

Accepted Answer

The dishes will stay in place on the table.

Answer

The dishes will fall to the ground.

Answer

The dishes will accelerate and then slow down.

Question 12

What is Newton's First Law

Accepted Answer

An object at rest stays at rest, an object in motion stays in motion.

Answer

F=ma

Answer

Every action has an equal and opposite reaction

Answer

Friction

Question 13

If there was no friction, objects in motion would stay in motion forever.

Accepted Answer

true

Answer

false

Question 14

A ball rolls down a steep hill. It travels 500 m in 1 minute. It then rolls on a flat surface for an additional 3 minutes and travels 300 m. What is the average speed of the ball?

Accepted Answer

200 m/min

Answer

.5 m/min

Answer

100 m/min

Answer

200 m/sec

Question 15

A change in velocity over time is

Accepted Answer

Acceleration

Answer

Scalar

Answer

Speed

Answer

Motion

Question 16

Which is an example of zero acceleration?

Accepted Answer

A person running on a treadmill at a rate of 6 MPH

Answer

A merri-go-round moving at a constant rate

Answer

A car coming to a stop

Answer

A boat speeding up

Question 17

88 m/s

Accepted Answer

Speed

Answer

Velocity

Answer

Acceleration

Question 18

88 m/s north

Accepted Answer

Velocity

Answer

Speed

Answer

Acceleration

Question 19

88 m/s2

Accepted Answer

Acceleration

Answer

Speed

Answer

Velocity

Question 20

What is the formula for calculating speed?

Accepted Answer

S= D/T

Answer

S= D x T

Answer

S= T/D

Answer

S= D+T

Question 21

Calculate the speed of a train that traveled 400 miles in 5 hours.

Accepted Answer

80 mph

Answer

20 mph

Answer

20 m/s

Answer

80 m/s

Question 22

mi (miles) is a unit for...

Accepted Answer

Distance

Answer

Speed

Answer

Time

Answer

Direction

Question 23

Km (kilometers) is a unit for...

Accepted Answer

Distance

Answer

Speed

Answer

Time

Answer

Direction

Question 24

min (minutes) is a unit for...

Accepted Answer

Time

Answer

Speed

Answer

Distance

Answer

Direction

Question 25

hr (hour) is a unit for ...

Accepted Answer

Time

Answer

Speed

Answer

Distance

Answer

Direction

Question 26

A car speeding up to get on the highway is an example of...

Accepted Answer

Acceleration

Answer

Speed

Answer

Velocity

Answer

Direction

Question 27

Calculate the speed of a sprinter who ran 200 meters in 20 seconds.

Accepted Answer

10m/s

Answer

10km/s

Answer

10m/hr

Answer

10km/hr

Question 28

A truck moving 20 m/s is an example of ...

Accepted Answer

Speed

Answer

Distance

Answer

Velocity

Answer

Acceleration

Question 29

Speed is

Accepted Answer

the change in distance in a given time

Answer

change in direction

Answer

moving in a specific direction

Answer

moving

Question 30

Velocity is...

Accepted Answer

distance over time with direction

Answer

distance over time

Answer

change in direction

Answer

change in speed and direction

Question 31

When a car goes around a corner at 20 mph, why do we say it  accelerates?

Accepted Answer

The car is accelerating because it's changing direction

Answer

The car is accelerating because of the velocity is constant

Answer

The car accelerates because it's going 20 mph

Answer

Cars always accelerate when they are in motion

Question 32

Acceleration only takes place when things speed up.

Accepted Answer

False

Answer

True

Question 33

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

Accepted Answer

16 m/s2

Answer

24 m/s2

Answer

18 m/s2

Answer

16 m/s

Question 34

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

Accepted Answer

40 m/s2

Answer

0 m/s

Answer

-40 m/s2

Answer

40 m/s

Question 35

A force that acts against motion when 2 or more substances rub together.

Accepted Answer

friction

Answer

motion

Answer

work

Answer

gravity

Question 36

Energy caused by vibrations.

Accepted Answer

sound

Answer

mechanical

Answer

light

Answer

thermal

Question 37

Light energy that bends while transmitting through an object.

Accepted Answer

refract

Answer

reflect

Answer

transmit

Answer

block

Question 38

Light energy that bounces off an object.

Accepted Answer

reflect

Answer

refract

Answer

transmit

Answer

block

Question 39

Looking at the roller coaster, were does the cart have the most potential energy?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 40

When a kid eats an apple and then uses the energy to go outside and play, the kid's body converts what kind of-

Accepted Answer

Chemical to Mechanical

Answer

Electrical to Chemical

Answer

Mechanical to Chemical

Answer

Light to Sound

Question 41

Which is an example of potential energy?

Accepted Answer

A girl on a diving board

Answer

A boy swimming

Answer

A girl hitting a volleyball

Answer

A boy running around the pool

Question 42

The rocket ship uses giant gas tanks to take off into outer space. What is the progression of the 3 energy transformation?

Accepted Answer

Chemical - Thermal - Mechanical

Answer

Electrical - Light - Mechanical

Answer

Mechanical - Thermal - Chemical

Question 43

What is the net force shown in the diagram?

Accepted Answer

50N left

Answer

50N right

Answer

950N

Answer

150N left

Question 44

Newton's 2nd law states---

Accepted Answer

F=M x A

Answer

For action there is an equal or opposite reaction

Answer

Law of inertia

Question 45

The gravitational force of any object near Earth's surface is ____.

Accepted Answer

9.8 m/s2

Answer

unknown

Answer

friction

Answer

Newton's first law

Question 46

For every action there is an equal and opposite reaction.

Accepted Answer

Newton's 3rd Law

Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

None of them

Question 47

Energy of motion is which type of energy?

Accepted Answer

Kinetic

Answer

Potential

Answer

Sound

Answer

Gravitational

Question 48

What type of energy is in this picture?

Accepted Answer

Potential

Answer

Kinetic

Answer

Chemical

Answer

Sound

Question 49

When plants convert the sun's energy into food, which type of energy is it?

Accepted Answer

chemical

Answer

kinetic

Answer

thermal

Answer

radiant

Question 50

What kind of energy is represented in this picture?

Accepted Answer

Thermal

Answer

Potential

Answer

Nuclear

Answer

Mechanical

Question 51

What kind of energy does this device use?

Accepted Answer

Electrical

Answer

Chemical

Answer

Thermal

Answer

Chemical

Question 52

What kind of energy is represented in the picture?

Accepted Answer

Chemical

Answer

Thermal

Answer

Sound

Answer

Nuclear

Question 53

A battery converts what type of energy to another?

Accepted Answer

chemical to electrical

Answer

sound to kinetic

Answer

light to heat

Answer

mechanical to electrical

Question 54

The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?

Accepted Answer

chemical to light

Answer

thermal to light

Answer

gravitational to potential

Answer

radiant to electrical

Question 55

Wind turbines and windmills convert what energy to another?

Accepted Answer

Kinetic to electric

Answer

Gravitational potential to electric

Answer

Mechanical to potential

Answer

Thermal to sound

Question 56

Energy that is stored in bonds between atoms is:

Accepted Answer

Chemical energy

Answer

Mechanical energy

Answer

Kinetic energy

Answer

Nuclear energy

Question 57

Energy caused by the movement in the particles of matter. It is a form of kinetic energy.

Accepted Answer

Thermal energy

Answer

Nuclear energy

Answer

Sound energy

Answer

Light energy

Question 58

Energy that comes from the nucleus of an atom. A form of potential energy.

Accepted Answer

Nuclear energy

Answer

chemical energy

Answer

Sound energy

Answer

Electrical energy

Question 59

According to which law of energy, energy can't be created or destroyed?

Accepted Answer

law of conservation of energy

Answer

First law of motion

Answer

The law of tacos

Answer

Laws of Energy

Question 60

The purpose of the panels is to change solar energy into ____________.

Accepted Answer

electrical energy

Answer

light energy

Answer

chemical energy

Answer

mechanical energy

Question 61

What machine changes chemical energy into heat, light and sound energy

Accepted Answer

firecracker

Answer

blender

Answer

lightbulb

Answer

apple

Question 62

What is energy?

Accepted Answer

the ability to do work

Answer

the movement of electrons

Answer

UPS global services

Question 63

what type is mechanical energy?

Accepted Answer

energy that is associated with moving

Answer

electrical energy

Answer

mm cool machine

Question 64

What is electrical energy?

Accepted Answer

the movement of electrons

Answer

my ipad

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