# GAMSAT Physics Questions & Topics

From: AceGAMSAT
Re: GAMSAT Physics Free Questions – Weight & Units

Before we get to the GAMSAT physics questions below, be sure to checkout out post where you can find out all of the GAMSAT physics topics you need to know for the exam.

Topics For Physics – View Now

Here you have some  below, which have been created to represent the types of questions in the actual exam. The following questions cover the topic – weights and units.

### Unit 1 – GAMSAT Physics Questions 1-4

A cube made of steel has a mass of 50 kg on earth. The acceleration due to gravity on earth is 9.81 m/s2, while on the moon it is equal to 1.635 m/s2. (Hint: 1N = 100,000 dynes)

1. What is the cube’s mass on the moon?

A. 50/6 kg
B. 300 kg
C. 50 kg
D. 44 kg

2. What is the cube’s weight on earth?

A. 490.5 dynes
B. 490.5 kg
C. 81.75 kg
D. 4.905 x 107 dynes

3. Which weighs more, 50 kg of cotton on earth or 50 kg of steel on the moon?

A. cotton
B. steel
C. they have the same weights
D. can’t be determined

4. Which has higher density, 50 kg of cotton on earth or 50 kg of steel on moon, considering that they have the same volume?

A. cotton
B. steel
C. they have the same densities
D. can’t be determined

Before we get to the fully worked answers, you can get your Full GAMSAT Practice Test or you can view our entire range of GAMSAT study products. This GAMSAT test is the closest thing to the real exam!

After you have attempted all gamsat physics question scroll below to check your answers.

Unit 1

The mass of the cube will remain the same even if it is on the moon. The key is therefore C.

Weight of an object is defined as its mass times the acceleration of gravity (g). Since the weight that we are asked for is on earth, we will use 9.81 m/s2. Multiplying this with the cube’s mass, we get:

They key is therefore D.

Both cotton and steel have the same masses, irrespective of their location. However, since the cotton is on earth, which has an acceleration due to gravity 6 times that of the moon, it follows that it would weigh more than the steel on the moon. The key is therefore A.

Density is defined as the mass of an object per its unit volume, or

Since both cotton and steel have the same masses and volumes, then they also have equal densities.

The key is therefore C.

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