Physics Unit 4 Post Test

According to Newton’s law of universal gravitation, which statement is true?

• As we move to higher altitudes, the force of gravity on us decreases.
• As we move to higher altitudes, the force of gravity on us increases.
• As we gain mass, the force of gravity on us decreases.
• As we move faster, the force of gravity on us increases.

Tags

NGSS.HS-PS2-4

An unmanned spacecraft leaves for Venus. Which statements about the spacecraft’s journey are true (hint: pick 2)?

• The weight of the spacecraft keeps changing.
• The mass of the spacecraft keeps changing.
• The weight of the spacecraft remains the same.
• The mass of the spacecraft remains the same.
• The gravitational pull on the spacecraft remains the same.

Tags

NGSS.HS-PS2-4

Antonio is holding a 1-pound bag of apples in his hand. Which sentence about this situation is true?

• The force caused by gravity is the same on each bag.
• Antonio is applying a 1-pound force to hold the 1-pound bag.
• Antonio must apply a greater force to hold the 1-pound bag than the 2-pound bag.
• The acceleration due to gravity is greater on the 2-pound bag.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Antonio is holding a 1-pound bag of apples in his left hand and a 2-pound bag of apples in his right hand. Which sentence about this situation is true?

• The force caused by gravity is the same on each bag.
• Antonio must apply a greater force to hold the 1-pound bag than the 2-pound bag.
• The acceleration due to gravity is greater on the 2-pound bag.
• The mass of the bag in his left hand is less than the mass of the bag in his right hand.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The image shows positions of the Earth and the Moon. In which region would an astronaut feel the lightest?

• A
• B
• C

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NGSS.HS-PS2-4

Type the correct answer in each box, number only. Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2. So, if the mass of an object on Earth is 40 kilograms, its mass on the Moon is __________ kilograms.

Type the correct answer in each box, numbers only. Gravity on Earth is 9.8 m/s2, and gravity on the Moon is 1.6 m/s2. So, if the mass of an object on Earth is 40 kilograms, its weight on the Moon is _________ newtons.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

How did scientists boost the spacecraft Juno on its way to Jupiter, helping it overcome the gravitational pull of the Sun?

• by using two rockets
• by using a gravitational slingshot
• by decreasing the mass of Juno
• by increasing the fuel on the rocket

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NGSS.HS-ESS1-4

NGSS.HS-PS2-4

Which statement is the correct representation of these electric field lines?

• Both plates are negatively charged.
• Both plates are neutral.
• Plate A is negatively charged and plate B is positively charged.
• Plate A is positively charged and plate B is negatively charged.
• Both plates are positively charged.

Tags

NGSS.HS-PS3-5

Based on this electric field diagram, which statement best compares the charge of A with B?

• A is negatively charged and B is positively charged. The charge on A is greater than that on B.
• A is negatively charged and B is positively charged. The charge on A is less than that on B.
• A is positively charged and B is negatively charged. The charge on A is greater than that on B.
• A is positively charged and B is negatively charged. The charge on A is less than that on B.
• A is positively charged and B is negatively charged. The charges on A and B are equal.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5