Push/Pull
What do you call a push, pull, or a twist?
Force
Fill in the blank.
Friction is a ___________ force.
A. Contact
B. Non-Contact
A
What do you call an object that produces magnetic force?
Magnet
True or False
Everything with mass produces a gravitational field.
True
What do you call the upward force felt by an object when you place them in fluid?
Buoyancy/ Buoyant Force
What type of forces creates a force field because they don't need contact to be applied?
A. Contact Forces C. Non-Contact Forces
B. Balanced Forces D. Unbalanced Forces
C
What is produced when friction is present?
Heat
Fill in the blanks.
Like poles _________ while unlike poles ________.
A. Repel Repel C. Attract Attract
B. Attract Repel D. Repel Attract
D
True or False
Gravitational Force attracts and repels depending on the relationship of the objects.
False
What do you call the attractive forces exerted on the top molecules of a liquid the molecules below?
Surface Tension
What is unit used to describe force?
Newton
In science, this word is used to describe something that follows the shape of its container. Examples are water and gas.
Fluid
In a magnetic field, what does it mean if an object intersects to a lot of magnetic field lines?
Stronger magnetic force
What do you call the gravitation force acting on a object?
Weight
What do you call how much mass is packed in a certain amount of space?
Density
What do you call a device to measure forces?
Spring Balance
What type of frictional force is felt when you are rowing a boat.
Drag force
Which of the following statements are FALSE.
A. Magnetic field lines must complete a loop.
B. The arrows always go from North to South
C. The arrows always go from South to North
D. A magnet always has two poles.
C
Fill in the blanks.
_______ is the amount of matter in an object. It ________ when you are on Earth, on Mars, or on Jupiter.
Mass ----- does not change
Fill in the blanks
An object sinks in water if it ________ than water, but it will float in water if it is _______ than water.
Fill in the blank.
When making a force diagram, the arrow should start in the ______ of gravity.
Center/Centre
There are two forces that a felt by a person when they are falling with a parachute. What are those forces?
Gravity and Air Resistance
In an electromagnet, we can increase the magnetic force through ______________ and ___________. Give one answer.
Increasing the number of turns
Increasing the voltage.
If the mass of an object is 1kg, what is its weight?
9.81N or 10N
Both are acceptable.
A mass is exerting 50N of gravitational force when it measured in the air. When it is submerged in water, it only exerts 35N of gravitational force.
Based on this observation, how strong is the buoyant force felt by the mass?
15N