WGU Integrated Physical Sciences C165
- PA
A beaker contains 500 g of liquid water. An ice cube with a mass of 5 g is added to the water in the
beaker.
How many grams of liquid water are in the beaker when the ice has melted?
Less than 500 g
500 g
505 g
More than 505 g Ans-505 g
A cashier who has been handed a hundred-dollar bill may check its authenticity by holding it under a
special lamp that emits electromagnetic radiation mostly at wavelengths slightly shorter than visible
light. The electromagnetic radiation makes a pattern of previously invisible markings on the bill glow
brightly, or fluoresce.
Which kind of electromagnetic radiation does the lamp emit to produce this effect?
Microwaves
Infrared radiation
Ultraviolet radiation
X-rays Ans-Ultraviolet radiation
A chemist places 250 grams of liquid water into a beaker. The volume of the liquid water is 250
milliliters. The chemist then freezes the water. After it is frozen, the ice has a volume of 273 milliliters.
What is the mass of the ice?
250 grams
Between 250 grams and 273 grams
,273 grams
More than 250 grams Ans-250 grams
A chocolate chip cookie is made with dough and chocolate chips.
Which type of substance is a chocolate chip cookie?
Element
Compound
Mixture
Mineral Ans-Mixture
A galaxy consists of many stars in the same large region of space.
Which phenomenon leads stars to group together to form a galaxy?
Gravity between stars
Electrical attraction
Random coincidence
Nuclear force between ions Ans-Gravity between stars
A gardener is working in a garden on a hot, humid day. Suddenly, clouds begin to form. Within a few
hours, gusty winds and a thunderstorm are passing through the area. After the storms pass, the weather
is clear and much cooler.
What caused this change in weather?
A high pressure system rested over the area.
A low pressure system rested over the area.
A cold front moved through the area.
A warm front moved through the area. Ans-A cold front moved through the area.
A geologist is doing a risk assessment for a location where the African plate is moving away from the
South American plate.
, Which risk description must the geologist give for this location?
There is high risk of volcanoes and low risk of large earthquakes.
There is low risk of volcanoes and high risk of large earthquakes.
There is high risk of both volcanoes and large earthquakes.
There is low risk of both volcanoes and large earthquakes. Ans-There is high risk of volcanoes and low
risk of large earthquakes.
A heavy truck and a light car travel at the same velocity side-by-side on the highway. Both drivers apply
the same braking force at the same moment.
What will happen to the two vehicles?
The car will slow down more quickly than the truck.
The truck will slow down more quickly than the car.
Both vehicles will slow down at the same rate.
The car will slow down but the truck will continue at the same speed. Ans-The car will slow down more
quickly than the truck.
A hiker needs to select a day for a hike. The hiker examines weather forecasts for the next several days.
Which day should the hike be planned for, if the hiker wants to hike on a clear day with no clouds?
A day when a high pressure system rests over the area
A day when a low pressure system rests over the area
A day when a warm front moves through
A day when a cold front moves through Ans-A day when a high pressure system rests over the area
A mathematical model is used to predict the trajectory of a bullet fired from a gun.
Which discipline of physical science is used to develop this model?
- PA
A beaker contains 500 g of liquid water. An ice cube with a mass of 5 g is added to the water in the
beaker.
How many grams of liquid water are in the beaker when the ice has melted?
Less than 500 g
500 g
505 g
More than 505 g Ans-505 g
A cashier who has been handed a hundred-dollar bill may check its authenticity by holding it under a
special lamp that emits electromagnetic radiation mostly at wavelengths slightly shorter than visible
light. The electromagnetic radiation makes a pattern of previously invisible markings on the bill glow
brightly, or fluoresce.
Which kind of electromagnetic radiation does the lamp emit to produce this effect?
Microwaves
Infrared radiation
Ultraviolet radiation
X-rays Ans-Ultraviolet radiation
A chemist places 250 grams of liquid water into a beaker. The volume of the liquid water is 250
milliliters. The chemist then freezes the water. After it is frozen, the ice has a volume of 273 milliliters.
What is the mass of the ice?
250 grams
Between 250 grams and 273 grams
,273 grams
More than 250 grams Ans-250 grams
A chocolate chip cookie is made with dough and chocolate chips.
Which type of substance is a chocolate chip cookie?
Element
Compound
Mixture
Mineral Ans-Mixture
A galaxy consists of many stars in the same large region of space.
Which phenomenon leads stars to group together to form a galaxy?
Gravity between stars
Electrical attraction
Random coincidence
Nuclear force between ions Ans-Gravity between stars
A gardener is working in a garden on a hot, humid day. Suddenly, clouds begin to form. Within a few
hours, gusty winds and a thunderstorm are passing through the area. After the storms pass, the weather
is clear and much cooler.
What caused this change in weather?
A high pressure system rested over the area.
A low pressure system rested over the area.
A cold front moved through the area.
A warm front moved through the area. Ans-A cold front moved through the area.
A geologist is doing a risk assessment for a location where the African plate is moving away from the
South American plate.
, Which risk description must the geologist give for this location?
There is high risk of volcanoes and low risk of large earthquakes.
There is low risk of volcanoes and high risk of large earthquakes.
There is high risk of both volcanoes and large earthquakes.
There is low risk of both volcanoes and large earthquakes. Ans-There is high risk of volcanoes and low
risk of large earthquakes.
A heavy truck and a light car travel at the same velocity side-by-side on the highway. Both drivers apply
the same braking force at the same moment.
What will happen to the two vehicles?
The car will slow down more quickly than the truck.
The truck will slow down more quickly than the car.
Both vehicles will slow down at the same rate.
The car will slow down but the truck will continue at the same speed. Ans-The car will slow down more
quickly than the truck.
A hiker needs to select a day for a hike. The hiker examines weather forecasts for the next several days.
Which day should the hike be planned for, if the hiker wants to hike on a clear day with no clouds?
A day when a high pressure system rests over the area
A day when a low pressure system rests over the area
A day when a warm front moves through
A day when a cold front moves through Ans-A day when a high pressure system rests over the area
A mathematical model is used to predict the trajectory of a bullet fired from a gun.
Which discipline of physical science is used to develop this model?
