I used to be a children's social worker so I can probably help.
-They'll probably want to know you understand safeguarding law, so talk about the children's act s17 and s47 which deal with children in need and safeguarding. Know a definition of significant harm and the assessment triangle. Stress you understand the importance of safeguarding and the needs of the child. Also working together with all professionals to share information and address risks
-assessment of risk to staff is fairly minimal, hopefully your team will have a checking in system and buddy system but I wouldn't bank on it. Take responsibility for yourself, make sure you've got a charged phone, update your outlook calendar to where you are and arrange to check in with someone
- lots of parents are difficult to engage. You can encourage them by being friendly/approachable/reliable (but not ignoring safeguarding issues)
Also read up on partnership working, which basically you and the parent work together to address the problem rather than fighting each other. Also look into systemic practice which is about understanding the parents' motivations and behaviour.
-they'll likely ask you about managing your time, talk about having a diary, planning ahead, prioritising, getting write ups done on time by having blocked out time for admin
-they'll probably ask you a question about equal ops, have something prepared
- I've noticed interviewer tend to have a form in front of them with the questions written in and boxes to fill in answers. Keep talking until the box is filled. If you need a second to think say "that's a really interesting question, let me think about that for a second".
I appear to have written an essay :) hope it all goes