WorksheetsForces
Total questions: 16
Worksheet time: 8mins
When two forces working in opposite directions are equal, we say that the forces are:
balanced
unbalanced
Two teams of kids are playing tug of war. Team A is pulling with 300 N of force. Team B is pulling with 400 N of force. Are these forces balanced or unbalanced?
balanced
unbalanced
I am pushing on a tree with 10 newtons of force. The tree is not moving and neither am I. How much force is the tree exerting on me?
0 newtons
5 newtons
10 newtons
20 newtons
Which part of a magnet has the greatest magnetic force?
the poles
the middle
All parts of a magnet exert equal force.
What is the name of the force that attracts you to Earth and keeps the Moon in its orbit?
gravity
friction
magnetism
electricity
The force of gravity between two objects is stronger when the objects are:
closer together
farther apart
Jupiter has stronger gravity than Earth because:
it is made mostly of gas
it is more massive than Earth
its is farther from the Sun
The north pole of one magnet is attracted to which part of another magnet?
the south pole
the north pole
the middle
Electricity is due to the flow of:
electrons
protons
neutrons
Which of the following statements are true about electrical charges? Select all correct answers.
Opposite charges attract.
Opposite charges repel.
Like charges repel.
Like charges attract.
Which of the following substances could be used to complete an electrical circuit?
metal
glass
paper
plastic
Which of the following simple machines allows you to change the input force needed by moving the fulcrum?
lever
wheel and axle
pulley
inclined plane
Which of the following would reduce the amount of friction for a cart rolling along the science room floor?
Make the surface smoother.
Add mass to the cart.
Take the wheels off of the cart.
Make the surface rougher.
Which two simple machines are being used to help the student get to the door?
pulley and lever
inclined plane and pulley
lever and wheel-and-axle
wheel-and-axle and inclined plane
Two unbalanced forces are pulling on the cart in opposite directions. Which way will the cart move?
left
right
It won't move.
A substance that allows an electrical current to flow through it is known as:
a conductor
an insulator
