Physics

Physics

Multiple Choice

example of inelastic collision:

• baseball hitting a ball

• jumping in water

• a bullet hitting wood

Multiple Choice

name one type of collision::

• inertia

• elastic

• plastic

Multiple Choice

momentum can be transferred from one object to another

• true

• false

Multiple Choice

Metals are good conductors of electricity because

• they contain free electrons

• the atoms are lightly packed 

• they have high melting point

• all of the above

Multiple Choice

what is the formula for momentum?

• p=vm

• p=mv

• i=mv

Multiple Choice

Is glass breaking a chemical or phyiscal change?

• chemical

• physical

Multiple Choice

when objects collide some momentum is lost:

• false

• true

Multiple Choice

Is burning wood a chemical or physical change?

• chemical
• physical

Multiple Choice

a tiny bullet can have more momentum than a huge truck:

• false

• true

Multiple Choice

Planets do not twinkle because

• they emit light of a constant intensity
• Their distance from the earth does not change the  time
• They are very far away from the earth resulting in decrease in intensity of light
• They are nearer to earth and hemce we recieve a greater amount of light and, therefore minor variations in the intensity are not noticeable

Multiple Choice

momentum can be transferred from one object to another

• true

• false

Multiple Choice

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Multiple Choice

when objects collide some momentum is lost:

• false

• true

Multiple Choice

what is inelastic collision?

• conserved energy

• energy is not conserved

Multiple Choice

a tiny bullet can have more momentum than a huge truck:

• false

• true

Multiple Choice

Is spoiling food a physical or chemical change?

• phyiscal
• chemical

Multiple Choice

what is the formula for momentum?

• p=vm

• p=mv

• i=mv

Multiple Choice

solve for momentum! .004kg and 600m/s

• 2.0

• 2.4

Multiple Choice

Pa (Pascal) is the unit for

• Thrust
• Pressure
• Frequency
• Conductivity

Multiple Choice

solve for momentum! .14kg and 30m/s

• 4.2

• 4.8

Multiple Choice

Is mowing the lawn a phyiscal or chemical change?

• physical
• chemical

Multiple Choice

solve for momentum! 3,000kg and 8,000m/s

• 23,000,000

• 24,000,000

Multiple Choice

what is an example of elastic collision?

• nail in wood

• basketball hitting ground

Multiple Choice

what is the formula for impulse?

• F=IT

• I=FT

Multiple Choice

Are fireworks exploding a physical or chemical change?

• phyiscal 
• chemical

Multiple Choice

A FOOTBALL PLAYER KICKS THE BALL WITH A FORCE OF 50N. FIND THE IMPULSE ON THE BALL IF HIS FOOT STAYS IN CONTACT WITH THE FOOTBALL FOR 0.01S

• 0.4N

• 0.5N

Multiple Choice

Stars appears to move from east to west because

• All stars move from east to west
• The earth rotates from west to east
• The earth rotates from east to west
• The background of the stars moves from west to east

Multiple Choice

Which is an example of a chemical reaction?

• paper cut into small pieces
• chocolate melting in a pan
• flour and sugar mixed in a bowl
• cookies baking in an oven

Multiple Choice

example of inelastic collision:

• baseball hitting a ball

• jumping in water

• a bullet hitting wood

Multiple Choice

When you break a cracker into pieces it is a 

• Chemical change
• Physical change
• Chemical Weathering
• Physical Weathering

Multiple Choice

Light from the sun reaches us in nearly

• 2 minutes
• 4 minutes
• 8 minutes
• 16 minutes

Multiple Choice

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Multiple Choice

what is the formula for momentum?

• p=vm

• p=mv

• i=mv

Multiple Choice

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Multiple Choice

Light year is a unit of

• Time
• Distance
• Light
• Intensity of light

Multiple Choice

momentum can be transferred from one object to another

• true

• false

Multiple Choice

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

• The heating effect of current alone
• Hysteresis loss alone
• both the heating effect of current and hysteresis loss
• intense sunlight at noon

Multiple Choice

when objects collide some momentum is lost:

• false

• true

Multiple Choice

The absorption of ink by blotting paper involves 

• Viscosity of ink
• Capillary action phenomenon
• Diffusion of ink through the blotting
• Siphon action

Multiple Choice

a tiny bullet can have more momentum than a huge truck:

• false

• true

Multiple Choice

It is easier to roll a stone up a sloping road than to lift it vertical upwards because

• work done in rolling is more than in lifting
• work done in lifting the stone is equal to rolling it
• Work done in both is same but the rate of doing work is less in rolling
• work done in rolling a stone is less than in lifting it

Multiple Choice

solve for momentum! .004kg and 600m/s

• 2.0

• 2.4

Multiple Choice

When exposed to lower air pressure, the boiling point of water

• Decreases
• Increases
• Remains the same
• All of the above

Multiple Choice

solve for momentum! .14kg and 30m/s

• 4.2

• 4.8

Multiple Choice

Which of these is a unit of work?

• Watt
• Meter
• Joule
• Newton

Multiple Choice

solve for momentum! 3,000kg and 8,000m/s

• 23,000,000

• 24,000,000

Multiple Choice

The orbits of the planets around the sun are 

• Circular
• Horizontal
• Elliptical
• Diagonal

Multiple Choice

what is the formula for impulse?

• F=IT

• I=FT

Multiple Choice

A FOOTBALL PLAYER KICKS THE BALL WITH A FORCE OF 50N. FIND THE IMPULSE ON THE BALL IF HIS FOOT STAYS IN CONTACT WITH THE FOOTBALL FOR 0.01S

• 0.4N

• 0.5N

Multiple Choice

A FOOTBALL PLAYER KICKS THE BALL WITH A FORCE OF 40N. FIND THE IMPULSE ON THE BALL IF HIS FOOT STAYS IN CONTACT WITH THE FOOTBALL FOR 0.02S

• 0.8S

• 0.9

Multiple Choice

A FOOTBALL PLAYER KICKS THE BALL WITH A FORCE OF 150N. FIND THE IMPULSE ON THE BALL IF HIS FOOT STAYS IN CONTACT WITH THE FOOTBALL FOR 0.023S

• 4S

• 3S

Multiple Choice

A FOOTBALL PLAYER KICKS THE BALL WITH A FORCE OF 190N. FIND THE IMPULSE ON THE BALL IF HIS FOOT STAYS IN CONTACT WITH THE FOOTBALL FOR 0.28S

• 52S

• 53S

Multiple Choice

FOR EVERY REACTION THERE IS AN OPPOSITE OR EQUAL REACTION:::

• 1ST LAW

• 3RD LAW