SPS8 - Test

How would the gravitational force between Earth and the Sun Change if Earth’s mass were doubled?

• The gravitational force would increase. 

• The gravitational force would be removed.

• The gravitational force would decrease.

• The gravitational force would stay the same.

Tags

NGSS.MS-PS2-4

Two equal forces act at the same time on the same stationary object, but in opposite directions. 

Which statement describes the object's resulting motion?

• The object will accelerate.

• The object will remain stationary.

• The object will change direction.

• The object will move at a constant speed. 

Tags

NGSS.MS-PS2-2

A student placed a stuffed animal on the dashboard of a car. When the car accelerated quickly, the stuffed animal flew back onto the seat. 

Which principle best describes the motion of the stuffed animal as the car accelerated?

• Gravity

• Momentum

• Inertia

• Speed 

Jeff was riding in a car. Which change would demonstrate the greatest effect of inertia?

• The car makes a sudden stop.

• The car changes into another lane. 

• The car slows down gradually.

• The car runs out of gas and rolls to a stop.

Which of these sets of objects will have the greatest gravitational attraction between them?

• Two 1 kg objects 1 m apart. 

• Two 1,000 kg objects 1 m apart.

• Two 1 kg objects 1,000 m apart. 

• Two 1,000 kg objects 1,000 m apart. 

Tags

NGSS.MS-PS2-4

A cart is being pushed over a smooth surface with a constant force. After 5 seconds, the cart starts moving over a rough surface. How will the cart be affected once the surface changes?

• The cart’s inertia will increase. 

• The cart’s friction will decrease.

• The cart’s velocity will increase. 

• The cart’s acceleration will decrease. 

Tags

NGSS.MS-PS2-2

The space shuttle uses booster rockets for its launch, but does not need them for the rest of its journey. 

This is because the booster rockets are used for what?

• To direct the shuttle on to its correct path.

• To allow the shuttle to overcome the pull of gravity.

• To reduce the amount of fuel needed to launch.

• To protect the shuttle from damage during the launch.

Tags

NGSS.HS-PS2-1

Which is true about the relationship between an object’s mass and its weight?

• The object’s mass is caused by the weight of gravity pushing the object downward.

• Weight is gravity’s force on the object, which is determined by the mass of the object. 

• An object’s weight and its mass are the same, but they are measured differently.

• An object’s weight and its mass are independent of each other and have no relationship. 

Tags

NGSS.MS-PS2-4

As an astronaut travels from Earth to a space station orbiting Earth, what happens to her mass and her weight?

• Her mass decreases, but weight remains the same. 

• Her mass remains the same, but her weight decreases. 

• Her mass increases and her weight decreases. 

• Her mass decreases and her weight also decreases.

Tags

NGSS.HS-PS2-4

Which is a result of the effect of gravity?

• Rocket engines can force objects into space.  

• Released objects always fall towards Earth’s surface.

• Air friction causes falling objects to slow down.

• Airplanes are able to fly without falling to the ground.

Tags

NGSS.MS-PS2-2