Introduction to Forces grade 7 physics

What is the SI unit of force?

• Joule

• Newton

• Pascal

• Watt

What type of force is a push or pull that acts on an object?

• Force

• Friction

• Magnetism

• Gravity

What happens to an object when a force is applied?

• It loses mass

• It changes shape

• It becomes invisible

• It remains stationary

What is the effect of balanced forces on an object?

• It accelerates

• It remains at rest or moves at constant speed

• It changes shape

• It moves in one direction

What is the purpose of a spring balance?

• To measure speed

• To measure distance

• To measure force

• To measure temperature

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

What is a force?

• the PUSH or PULL on an object 
• The MOTION an object creates
• The objects HITTING one another
• Going REALLY FAST

What do the arrows tell you?

• strength
• direction and strength
• direction
• speed

How can you describe the concept of balancing forces? Provide an example.

• Balancing forces occur when there are no forces acting on an object.

• Balancing forces occur when two forces of equal magnitude and same direction act on an object.

• Balancing forces occur when one force is much stronger than the other force acting on an object.

• Balancing forces occur when two forces of equal magnitude and opposite direction act on an object, resulting in no change in the object's motion.