WorksheetsScience Forces
Total questions: 10
Worksheet time: 5mins
What happens to unsupported objects on our planet?
Gravity pulls them towards the center of the earth
They float off into space
They wait for support
They slow down
Which two of these forces act on parachutes?
Air Resistance
Gravity
Thrust
Kinetic Energy
What causes an object to fall faster?
Smaller surface area
Larger surface area
If it has a parachute
If it is softer
What is water resistance ?
friction between moving object in water
gravity in water
pulling force
friction between moving object in air
According to Newton, what kinds of objects are affected by gravity?
Only objects inside the earth's atmosphere, like apples.
Only objects that orbit the sun, like planets.
Only objects with a lot of mass, like human beings.
All objects in the universe.
What does this image represent?
A pulley
A wedge
A lever
A wheel and axle
What causes a ball rolling across a rug to slow to a stop?
The rug doesn't have enough force to hold the ball.
Friction resists the ball's forward motion.
The rug doesn't have enough momentum to keep the ball moving.
The ball isn't moving fast enough.
What does this image represent?
A pulley
A wedge
A lever
A wheel and axle
What are two types of pulleys?
wings, fries
load. weight
fixed, movable
effort, force
Pulleys make work:
Easier
Rigorous
