Question 1

Select an equation that relates momentum, mass ans speed.

Accepted Answer

p = mv

Answer

v = pm

Answer

m = pv

Answer

$\frac{m}{p}=\ v$

Question 2

Select the correct equation of density.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

d = v/m

Answer

$\frac{m}{p}=\ v$

Question 3

Three metals cubes have the same mass but are made of different meals. Select which one will cause he biggest rise in level.

Accepted Answer

there are going to cause the same rise in water level

Answer

Lead

Answer

Gold

Answer

Silver

Question 4

Select how could you measure the density of a pencil.

Accepted Answer

Put water into a beaker and measure it, then you put the pencil and measure how much does it increase, then you subtract the increase of water with the pencil to the measure of only the water.

Answer

You measure the pencil's weight and length, you put water into a beaker and sum all the result.

Answer

Put water into a beaker and measure it, put the pencil and another time you measure it, then you sum both measurements and divided by two.

Answer

You put the water into a beaker of 1 L, then you add the pencil and measure how much does it increase, and sum 1 L to the increasing of the water.

Question 5

What is speed?

Accepted Answer

The distance travelled by an object per unit of time.

Answer

Is the constant acceleration of an object.

Answer

Is how long it takes to reach a destination.

Answer

Is the same as velocity.

Question 6

Select how to calculate speed.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

s = (t)(d)

Answer

s = d + t

Question 7

Select the correct equation of acceleration.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Question 8

What is the force equation?

Accepted Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Question 9

Select which are the most common forces.

Accepted Answer

Weight, Contact Force, Friction, Air Resistance, Upthrust.

Answer

Applied Force, Tension Force, Adhesive Force, Shear Force.

Answer

Magnetic Force, Drag Force, Compression Force, Elastic Force.

Answer

Electrostatic Force, Buoyant Force, Magnetic Force, Lift Force.

Question 10

What is a resultant force?

Accepted Answer

The single force that has the same effect on a body as two or more forces.

Answer

The action of one body on a second body.

Answer

The force that acts when two surfaces rub over one another.

Answer

The force required to give a mass of 1kg an acceleration of 1m/s2.

Question 11

Select the correct equation of resultant force.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

Rresultant force doesn’t have an equation.

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Question 12

What is gravity?

Accepted Answer

The force that exists between any two objects with mass.

Answer

The force that exist in space.

Answer

The force caused by the Earth’s rotation.

Answer

The force that pulls things down.

Question 13

What is the gravitational field strength?

Accepted Answer

The gravitational force exerted per unit mass placed at that point.

Answer

How fast the pull of gravity is at a certain place.

Answer

Is the force that is the same in all the Earth.

Answer

Is how fast objects fall.

Question 14

Select the correct formula of gravitational field strength.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Question 15

Select the correct equation for momentum.

Accepted Answer

$\frac{m}{p}=\ v$

Answer

Momentum doesn’t have an specific equation.

Answer

$\frac{m}{p}=\ v$

Answer

$\frac{m}{p}=\ v$

Question 16

What is impulse?

Accepted Answer

The change in an object’s momentum.

Answer

The result of collisions.

Answer

The change of speed that only acts on moving objects.

Answer

Tthe force applied over a large distance.

Question 17

What is the chemical energy?

Accepted Answer

Energy stored in bonds between atoms that can be released when chemical reaction take place.

Answer

Is a type of kinetic energy.

Answer

Energy stored in the nucleus of an atom.

Answer

Is the energy that’s only found in batteries.

Question 18

Select the correct meaning of nuclear energy.

Accepted Answer

Energy stored in the nucleus of an atom.

Answer

Is the same as radiation.

Answer

Is the energy that comes from splitting electrons.

Answer

This energy is the same as geothermal energy.

Question 19

What is strain or elastic energy?

Accepted Answer

Is the energy stored in the changed shape of an object.

Answer

Energy released by stretching an object.

Answer

Is a form of kinetic energy.

Answer

Energy of an object.

Question 20

What is internal energy?

Accepted Answer

The energy of an object, the total kinetic and potential energies of its particles.

Answer

The energy created in high temperatures.

Answer

Energy found in the inside of the body.

Answer

Refers only to heat energy.

Question 21

Select the correct meaning of thermal energy.

Accepted Answer

Energy transferred from a hotter place to a older place, because of the temperature difference between them.

Answer

Energy that depends only on temperature.

Answer

Energy that refers to heat that can be felt.

Answer

Energy produced by friction.

Related quizzes

Related quizzes